blabla/PATSTAT/CPC_data/CPCSchemeXML202302/cpc-scheme-C07D.xml

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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="C07D" definition-exists="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>HETEROCYCLIC COMPOUNDS </text><reference><text>macromolecular compounds <class-ref scheme="cpc">C08</class-ref></text></reference></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph>This subclass <u>does not cover</u> compounds containing saccharide radicals as defined in Note (3) following the title of subclass <class-ref scheme="cpc">C07H</class-ref>, which are covered by subclass <class-ref scheme="cpc">C07H</class-ref>.  </note-paragraph><note-paragraph> In this subclass, in compounds containing a hetero ring covered by group <class-ref scheme="cpc">C07D295/00</class-ref> and at least one other hetero ring, the hetero ring covered by group <class-ref scheme="cpc">C07D295/00</class-ref> is considered as an acyclic chain containing nitrogen atoms.</note-paragraph><note-paragraph>In this subclass, the following terms or expressions are used with the meaning indicated:<subnote type="bullet"> <note-paragraph>&quot;hetero ring&quot; is a ring having at least one halogen, nitrogen, oxygen, sulfur, selenium or tellurium atom as a ring member;</note-paragraph><note-paragraph>&quot;bridged&quot; means the presence of at least one fusion other than ortho, peri or spiro;</note-paragraph><note-paragraph>two rings are &quot;condensed&quot; if they share at least one ring member, i.e. &quot;spiro&quot; and &quot;bridged&quot; are considered as condensed;</note-paragraph><note-paragraph>&quot;condensed ring system&quot; is a ring system in which all rings are condensed among themselves;</note-paragraph><note-paragraph>&quot;number of relevant rings&quot; in a condensed ring system equals the number of scissions necessary to convert the ring system into one acyclic chain;</note-paragraph><note-paragraph>&quot;relevant rings&quot; in a condensed ring system, i.e. the rings which taken together describe all the links between every atom of the ring system, are chosen according to the following criteria consecutively:<subnote type="alpha"><note-paragraph>lowest number of ring members;</note-paragraph><note-paragraph>highest number of hetero atoms as ring members;</note-paragraph><note-paragraph>lowest number of members shared with other rings;</note-paragraph><note-paragraph> last place in the classification scheme.</note-paragraph></subnote></note-paragraph> </subnote></note-paragraph><note-paragraph>Attention is drawn to Note (3) after class <class-ref scheme="cpc">C07</class-ref>, which defines the last place priority rule applied in the range of subclasses <class-ref scheme="cpc">C07C</class-ref> - <class-ref scheme="cpc">C07K</class-ref> and within these subclasses.</note-paragraph><note-paragraph>Therapeutic activity of compounds is further classified in subclass <class-ref scheme="cpc">A61P</class-ref>.</note-paragraph><note-paragraph> In this subclass, the last place priority rule is applied, i.e. at each hierarchical level, in the absence of an indication to the contrary:<subnote type="alpha"><note-paragraph>compounds having only one hetero ring are classified in the last appropriate place in one of the groups <class-ref scheme="cpc">C07D203/00</class-ref> - <class-ref scheme="cpc">C07D347/00</class-ref>. The same applies for compounds having more hetero rings covered by the same main group, neither condensed among themselves nor condensed with a common carbocyclic ring system;</note-paragraph><note-paragraph>compounds having two or more hetero rings covered by different main groups neither condensed among themselves nor condensed with a common carbocyclic ring system are classified in the last appropriate place in one of the groups <class-ref scheme="cpc">C07D401/00</class-ref> - <class-ref scheme="cpc">C07D421/00</class-ref>;</note-paragraph><note-paragraph>compounds having two or more relevant hetero rings, covered by the same or by different main groups, which are condensed among themselves or condensed with a common carbocyclic ring system, are classified in the last appropriate place in one of the groups <class-ref scheme="cpc">C07D451/00</class-ref> - <class-ref scheme="cpc">C07D519/00</class-ref>.</note-paragraph></subnote></note-paragraph><note-paragraph>In this subclass:<subnote type="bullet"><note-paragraph> where a compound may exist in tautomeric forms, it is classified as though existing in the form which is classified last in the system. Therefore, double bonds between ring members and non-ring members and double bonds between ring members themselves are considered equivalent in determining the degree of hydrogenation of the ring. Formulae are considered to be written in Kekule form;</note-paragraph><note-paragraph> hydrocarbon radicals containing a carbocyclic ring and an acyclic chain by which it is linked to the hetero ring and being substituted on both the carbocyclic ring and the acyclic chain by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, are classified according to the substituents on the acyclic chain. For example, the compound<br/><media id="1031" file-name="cpc-sch-C07D-1031.gif" type="gif"/><br/> is classified in group <class-ref scheme="cpc">C07D233/22</class-ref>, <br/> and the compound <br/><media id="1032" file-name="cpc-sch-C07D-1032.gif" type="gif"/><br/> is classified in groups <class-ref scheme="cpc">C07D233/24</class-ref> and <class-ref scheme="cpc">C07D233/26</class-ref>, where X &#8212;NH<sub>2</sub>, &#8212;NHCOCH<sub>3</sub>, or &#8212;COOCH<sub>3</sub>. </note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C07D201/00" date-revised="2013-01-01" status="published"><classification-symbol>C07D201/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds having only nitrogen as ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D201/00" definition-exists="false" ipc-concordant="C07D201/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D201/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation, separation, purification or stabilisation of unsubstituted lactams</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D201/02" definition-exists="false" ipc-concordant="C07D201/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D201/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of lactams</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D201/04" definition-exists="false" ipc-concordant="C07D201/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D201/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from or via oximes by Beckmann rearrangement</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D201/06" definition-exists="false" ipc-concordant="C07D201/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D201/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from ketones by simultaneous oxime formation and rearrangement</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D201/08" definition-exists="false" ipc-concordant="C07D201/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D201/08</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D201/10" definition-exists="false" ipc-concordant="C07D201/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D201/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from cycloaliphatic compounds by simultaneous nitrosylation and rearrangement</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D201/12" definition-exists="false" ipc-concordant="C07D201/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D201/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by depolymerising polyamides</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D201/14" definition-exists="false" ipc-concordant="C07D201/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D201/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of salts or adducts of lactams</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D201/16" definition-exists="true" ipc-concordant="C07D201/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D201/16</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Separation or purification</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D201/18" definition-exists="false" ipc-concordant="C07D201/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D201/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Stabilisation</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C07D203/00" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/00</classification-symbol>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D203/00" definition-exists="false" ipc-concordant="C07D203/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D203/02" definition-exists="false" ipc-concordant="C07D203/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation by ring-closure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D203/04" definition-exists="false" ipc-concordant="C07D203/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D203/06" definition-exists="false" ipc-concordant="C07D203/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D203/08" definition-exists="false" ipc-concordant="C07D203/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D203/10" definition-exists="false" ipc-concordant="C07D203/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by singly bound oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D203/12" definition-exists="false" ipc-concordant="C07D203/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D203/14" definition-exists="false" ipc-concordant="C07D203/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with carbocyclic rings directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D203/16" definition-exists="false" ipc-concordant="C07D203/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with acylated ring nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D203/18" definition-exists="false" ipc-concordant="C07D203/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by carboxylic acids, or by sulfur or nitrogen analogues thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D203/20" definition-exists="false" ipc-concordant="C07D203/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by carbonic acid, or by sulfur or nitrogen analogues thereof, e.g. carbamates</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D203/22" definition-exists="false" ipc-concordant="C07D203/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D203/24" definition-exists="false" ipc-concordant="C07D203/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D203/26" definition-exists="false" ipc-concordant="C07D203/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D203/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D205/00" definition-exists="false" ipc-concordant="C07D205/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D205/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D205/02" definition-exists="false" ipc-concordant="C07D205/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D205/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D205/04" definition-exists="false" ipc-concordant="C07D205/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D205/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D205/06" definition-exists="false" ipc-concordant="C07D205/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D205/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D205/08" definition-exists="false" ipc-concordant="C07D205/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D205/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with one oxygen atom directly attached in position 2, e.g. beta-lactams</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D205/085" definition-exists="false" ipc-concordant="C07D205/085" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D205/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a nitrogen atom directly attached in position 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D205/09" definition-exists="false" ipc-concordant="C07D205/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D205/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a sulfur atom directly attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D205/095" definition-exists="false" ipc-concordant="C07D205/095" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D205/095</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>and with a nitrogen atom directly attached in position 3</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D205/10" definition-exists="false" ipc-concordant="C07D205/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D205/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D205/12" definition-exists="false" ipc-concordant="C07D205/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D205/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D207/00" definition-exists="false" ipc-concordant="C07D207/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Pyrrolidines having only hydrogen atoms attached to the ring carbon atoms are classified in <class-ref scheme="cpc">C07D295/00</class-ref></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D207/02" definition-exists="false" ipc-concordant="C07D207/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen or carbon atoms directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D207/04" definition-exists="false" ipc-concordant="C07D207/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D207/06" definition-exists="false" ipc-concordant="C07D207/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with radicals, containing only hydrogen and carbon atoms, attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D207/08" definition-exists="false" ipc-concordant="C07D207/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by hetero atoms, attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/09" definition-exists="false" ipc-concordant="C07D207/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms, not forming part of a nitro radical</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D207/10" definition-exists="false" ipc-concordant="C07D207/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D207/10</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/12" definition-exists="false" ipc-concordant="C07D207/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen or sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/14" definition-exists="false" ipc-concordant="C07D207/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/16" definition-exists="false" ipc-concordant="C07D207/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D207/18" definition-exists="false" ipc-concordant="C07D207/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D207/20" definition-exists="false" ipc-concordant="C07D207/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D207/22" definition-exists="false" ipc-concordant="C07D207/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D207/22</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/24" definition-exists="false" ipc-concordant="C07D207/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen or sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D207/26" definition-exists="false" ipc-concordant="C07D207/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>2-Pyrrolidones</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D207/263" definition-exists="false" ipc-concordant="C07D207/263" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/263</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D207/267" definition-exists="false" ipc-concordant="C07D207/267" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/267</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D207/27" definition-exists="false" ipc-concordant="C07D207/27" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/27</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D207/273" definition-exists="false" ipc-concordant="C07D207/273" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/273</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to other ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D207/277" definition-exists="false" ipc-concordant="C07D207/277" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/277</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D207/28" definition-exists="false" ipc-concordant="C07D207/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>2-Pyrrolidone-5- carboxylic acids</text></title-part><title-part><text>Functional derivatives thereof, e.g. esters, nitriles</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D207/30" definition-exists="false" ipc-concordant="C07D207/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D207/32" definition-exists="false" ipc-concordant="C07D207/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/323" definition-exists="false" ipc-concordant="C07D207/323" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/323</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to the ring nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/325" definition-exists="false" ipc-concordant="C07D207/325" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/325</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D207/327" definition-exists="false" ipc-concordant="C07D207/327" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/327</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/33" definition-exists="false" ipc-concordant="C07D207/33" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/33</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D207/333" definition-exists="false" ipc-concordant="C07D207/333" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/333</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen or sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D207/335" definition-exists="false" ipc-concordant="C07D207/335" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/335</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D207/337" definition-exists="false" ipc-concordant="C07D207/337" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/337</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D207/34" definition-exists="false" ipc-concordant="C07D207/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D207/34</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/36" definition-exists="false" ipc-concordant="C07D207/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen or sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D207/38" definition-exists="false" ipc-concordant="C07D207/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>2-Pyrrolones</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D207/40" definition-exists="false" ipc-concordant="C07D207/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>2,5-Pyrrolidine-diones</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D207/404" definition-exists="false" ipc-concordant="C07D207/404" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/404</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms, e.g. succinimide</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D207/408" definition-exists="false" ipc-concordant="C07D207/408" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/408</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals containing only hydrogen and carbon atoms attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D207/412" definition-exists="false" ipc-concordant="C07D207/412" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/412</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acyclic radicals containing more than six carbon atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D207/416" definition-exists="false" ipc-concordant="C07D207/416" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/416</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to other ring carbon atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/42" definition-exists="false" ipc-concordant="C07D207/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitro radicals</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D207/44" definition-exists="false" ipc-concordant="C07D207/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D207/444" definition-exists="false" ipc-concordant="C07D207/444" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/444</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two doubly-bound oxygen atoms directly attached in positions 2 and 5</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/448" definition-exists="false" ipc-concordant="C07D207/448" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/448</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms, e.g. maleimide</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D207/452" definition-exists="false" ipc-concordant="C07D207/452" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/452</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by hetero atoms, directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D207/456" definition-exists="false" ipc-concordant="C07D207/456" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/456</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to other ring carbon atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D207/46" definition-exists="false" ipc-concordant="C07D207/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D207/48" definition-exists="false" ipc-concordant="C07D207/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D207/50" definition-exists="false" ipc-concordant="C07D207/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D207/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D209/00" definition-exists="false" ipc-concordant="C07D209/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D209/02" definition-exists="false" ipc-concordant="C07D209/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one carbocyclic ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D209/04" definition-exists="false" ipc-concordant="C07D209/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Indoles</text></title-part><title-part><text>Hydrogenated indoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/06" definition-exists="false" ipc-concordant="C07D209/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of indole from coal-tar</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/08" definition-exists="false" ipc-concordant="C07D209/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to carbon atoms of the hetero ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/10" definition-exists="false" ipc-concordant="C07D209/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/12" definition-exists="false" ipc-concordant="C07D209/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/14" definition-exists="false" ipc-concordant="C07D209/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms, not forming part of a nitro radical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D209/16" definition-exists="false" ipc-concordant="C07D209/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tryptamines</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/18" definition-exists="false" ipc-concordant="C07D209/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D209/20" definition-exists="false" ipc-concordant="C07D209/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted additionally by nitrogen atoms, e.g. tryptophane</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D209/22" definition-exists="false" ipc-concordant="C07D209/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an aralkyl radical attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D209/24" definition-exists="false" ipc-concordant="C07D209/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an alkyl or cycloalkyl radical attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D209/26" definition-exists="false" ipc-concordant="C07D209/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an acyl radical attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D209/28" definition-exists="false" ipc-concordant="C07D209/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1-(4-Chlorobenzoyl)-2-methyl-indolyl-3-acetic acid, substituted in position 5 by an oxygen or nitrogen atom</text></title-part><title-part><text>Esters thereof</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/30" definition-exists="false" ipc-concordant="C07D209/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to carbon atoms of the hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/32" definition-exists="false" ipc-concordant="C07D209/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D209/34" definition-exists="false" ipc-concordant="C07D209/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in position 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D209/36" definition-exists="false" ipc-concordant="C07D209/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in position 3, e.g. adrenochrome</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D209/38" definition-exists="false" ipc-concordant="C07D209/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D209/38</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>in positions 2 and 3, e.g. isatin</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/40" definition-exists="false" ipc-concordant="C07D209/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms, not forming part of a nitro radical, e.g. isatin semicarbazone</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/42" definition-exists="false" ipc-concordant="C07D209/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/43" definition-exists="false" ipc-concordant="C07D209/43" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D209/43</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>with an &#8212;OCH<sub>2</sub>CH(OH)CH<sub>2</sub>NH<sub>2</sub> radical, which may be further substituted, attached in positions 4, 5, 6 or 7</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D209/44" definition-exists="false" ipc-concordant="C07D209/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Iso-indoles</text></title-part><title-part><text>Hydrogenated iso-indoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/46" definition-exists="false" ipc-concordant="C07D209/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an oxygen atom in position 1</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/48" definition-exists="false" ipc-concordant="C07D209/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms in positions 1 and 3, e.g. phthalimide</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/49" definition-exists="false" ipc-concordant="C07D209/49" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/49</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>and having in the molecule an acyl radical containing a saturated three-membered ring, e.g. chrysanthemumic acid esters</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/50" definition-exists="false" ipc-concordant="C07D209/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>C07D209/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen and nitrogen atoms in positions 1 and 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D209/52" definition-exists="false" ipc-concordant="C07D209/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with a ring other than six-membered</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D209/54" definition-exists="false" ipc-concordant="C07D209/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D209/56" definition-exists="false" ipc-concordant="C07D209/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ring systems containing three or more rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D209/58" definition-exists="false" ipc-concordant="C07D209/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b]- or [c]-condensed</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/60" definition-exists="false" ipc-concordant="C07D209/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Naphtho [b] pyrroles</text></title-part><title-part><text>Hydrogenated naphtho [b] pyrroles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/62" definition-exists="false" ipc-concordant="C07D209/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Naphtho [c] pyrroles</text></title-part><title-part><text>Hydrogenated naphtho [c] pyrroles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/64" definition-exists="false" ipc-concordant="C07D209/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an oxygen atom in position 1</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/66" definition-exists="false" ipc-concordant="C07D209/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms in positions 1 and 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/68" definition-exists="false" ipc-concordant="C07D209/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen and nitrogen atoms in positions 1 and 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/70" definition-exists="false" ipc-concordant="C07D209/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing carbocyclic rings other than six-membered</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/72" definition-exists="false" ipc-concordant="C07D209/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>4,7-Endo-alkylene-iso-indoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/74" definition-exists="false" ipc-concordant="C07D209/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an oxygen atom in position 1</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/76" definition-exists="false" ipc-concordant="C07D209/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms in positions 1 and 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/78" definition-exists="false" ipc-concordant="C07D209/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen and nitrogen atoms in positions 1 and 3</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D209/80" definition-exists="false" ipc-concordant="C07D209/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b, c]- or [b, d]-condensed</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/82" definition-exists="false" ipc-concordant="C07D209/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbazoles</text></title-part><title-part><text>Hydrogenated carbazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/84" definition-exists="false" ipc-concordant="C07D209/84" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/84</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Separation, e.g. from tar</text></title-part><title-part><text>Purification</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/86" definition-exists="false" ipc-concordant="C07D209/86" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/88" definition-exists="false" ipc-concordant="C07D209/88" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/88</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/90" definition-exists="false" ipc-concordant="C07D209/90" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/90</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzo [c, d] indoles</text></title-part><title-part><text>Hydrogenated benzo [c, d] indoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D209/92" definition-exists="false" ipc-concordant="C07D209/92" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/92</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Naphthostyrils</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D209/94" definition-exists="false" ipc-concordant="C07D209/94" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>C07D209/94</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing carbocyclic rings other than six-membered</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D209/96" definition-exists="false" ipc-concordant="C07D209/96" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D209/96</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed ring systems</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D211/00" definition-exists="false" ipc-concordant="C07D211/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D211/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this group, the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph>&quot;hydrogenated&quot; means having less than three double bonds between ring members or between ring members and non-ring members.</note-paragraph></subnote></note-paragraph><note-paragraph> Piperidines having only hydrogen atoms attached to the ring carbon atoms are classified in <class-ref scheme="cpc">C07D295/00</class-ref></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D211/02" definition-exists="false" ipc-concordant="C07D211/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation by ring-closure or hydrogenation</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D211/04" definition-exists="false" ipc-concordant="C07D211/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen or carbon atoms directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D211/06" definition-exists="false" ipc-concordant="C07D211/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D211/08" definition-exists="false" ipc-concordant="C07D211/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/10" definition-exists="false" ipc-concordant="C07D211/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with radicals containing only carbon and hydrogen atoms attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/12" definition-exists="false" ipc-concordant="C07D211/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/14" definition-exists="false" ipc-concordant="C07D211/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon or substituted hydrocarbon radicals attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/16" definition-exists="false" ipc-concordant="C07D211/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with acylated ring nitrogen atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/18" definition-exists="false" ipc-concordant="C07D211/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/20" definition-exists="true" ipc-concordant="C07D211/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D211/20</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hydrocarbon radicals, substituted by singly bound oxygen or sulphur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D211/22" definition-exists="false" ipc-concordant="C07D211/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D211/24" definition-exists="false" ipc-concordant="C07D211/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by sulfur atoms to which a second hetero atom is attached</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/26" definition-exists="false" ipc-concordant="C07D211/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D211/28" definition-exists="false" ipc-concordant="C07D211/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to which a second hetero atom is attached</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/30" definition-exists="false" ipc-concordant="C07D211/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by doubly bound oxygen or sulfur atoms or by two oxygen or sulfur atoms singly bound to the same carbon atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D211/32" definition-exists="false" ipc-concordant="C07D211/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by oxygen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/34" definition-exists="false" ipc-concordant="C07D211/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D211/36" definition-exists="false" ipc-concordant="C07D211/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/38" definition-exists="false" ipc-concordant="C07D211/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms or nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/40" definition-exists="false" ipc-concordant="C07D211/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/42" definition-exists="false" ipc-concordant="C07D211/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 3 or 5</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/44" definition-exists="false" ipc-concordant="C07D211/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D211/46" definition-exists="false" ipc-concordant="C07D211/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a hydrogen atom as the second substituent in position 4</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D211/48" definition-exists="false" ipc-concordant="C07D211/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having an acyclic carbon atom attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D211/50" definition-exists="false" ipc-concordant="C07D211/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aroyl radical</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D211/52" definition-exists="false" ipc-concordant="C07D211/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having an aryl radical as the second substituent in position 4</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/54" definition-exists="false" ipc-concordant="C07D211/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/56" definition-exists="false" ipc-concordant="C07D211/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D211/38</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/58" definition-exists="false" ipc-concordant="C07D211/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 4</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/60" definition-exists="false" ipc-concordant="C07D211/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/62" definition-exists="false" ipc-concordant="C07D211/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D211/64" definition-exists="false" ipc-concordant="C07D211/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having an aryl radical as the second substituent in position 4</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D211/66" definition-exists="false" ipc-concordant="C07D211/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a hetero atom as the second substituent in position 4</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D211/68" definition-exists="false" ipc-concordant="C07D211/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D211/70" definition-exists="false" ipc-concordant="C07D211/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D211/72" definition-exists="false" ipc-concordant="C07D211/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/74" definition-exists="false" ipc-concordant="C07D211/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/76" definition-exists="false" ipc-concordant="C07D211/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 2 or 6</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/78" definition-exists="false" ipc-concordant="C07D211/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D211/80" definition-exists="false" ipc-concordant="C07D211/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D211/82" definition-exists="false" ipc-concordant="C07D211/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D211/84" definition-exists="false" ipc-concordant="C07D211/84" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/84</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/86" definition-exists="false" ipc-concordant="C07D211/86" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D211/88" definition-exists="false" ipc-concordant="C07D211/88" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/88</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in positions 2 and 6, e.g. glutarimide</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D211/90" definition-exists="false" ipc-concordant="C07D211/90" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/90</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D211/92" definition-exists="false" ipc-concordant="C07D211/92" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/92</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a hetero atom directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D211/94" definition-exists="false" ipc-concordant="C07D211/94" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/94</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atom, e.g. piperidine N-oxide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D211/96" definition-exists="false" ipc-concordant="C07D211/96" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/96</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D211/98" definition-exists="false" ipc-concordant="C07D211/98" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D211/98</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atom</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D213/00" definition-exists="false" ipc-concordant="C07D213/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D213/02" definition-exists="false" ipc-concordant="C07D213/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D213/04" definition-exists="false" ipc-concordant="C07D213/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D213/06" definition-exists="false" ipc-concordant="C07D213/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing only hydrogen and carbon atoms in addition to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/08" definition-exists="false" ipc-concordant="C07D213/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation by ring-closure</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/09" definition-exists="false" ipc-concordant="C07D213/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>involving the use of ammonia, amines, amine salts, or nitriles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/10" definition-exists="false" ipc-concordant="C07D213/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from acetaldehyde or cyclic polymers thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/12" definition-exists="false" ipc-concordant="C07D213/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from unsaturated compounds</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/127" definition-exists="false" ipc-concordant="C07D213/127" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation from compounds containing pyridine rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/133" definition-exists="false" ipc-concordant="C07D213/133" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/133</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation by dehydrogenation of hydrogenated pyridine compounds</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/14" definition-exists="false" ipc-concordant="C07D213/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation from compounds containing heterocyclic oxygen</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/16" definition-exists="false" ipc-concordant="C07D213/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D213/16</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>containing only one pyridine ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/18" definition-exists="false" ipc-concordant="C07D213/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Salts thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/20" definition-exists="false" ipc-concordant="C07D213/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Quaternary compounds thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/22" definition-exists="false" ipc-concordant="C07D213/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing two or more pyridine rings directly linked together, e.g. bipyridyl</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D213/24" definition-exists="false" ipc-concordant="C07D213/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/26" definition-exists="false" ipc-concordant="C07D213/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by halogen atoms or nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/28" definition-exists="true" ipc-concordant="C07D213/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D213/28</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Radicals substituted by singly-bound oxygen or sulphur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/30" definition-exists="false" ipc-concordant="C07D213/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/32" definition-exists="false" ipc-concordant="C07D213/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/34" definition-exists="false" ipc-concordant="C07D213/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D213/34</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>to which a second hetero atom is attached</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/36" definition-exists="false" ipc-concordant="C07D213/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by singly-bound nitrogen atoms </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D213/26</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/38" definition-exists="false" ipc-concordant="C07D213/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D213/38</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>having only hydrogen or hydrocarbon radicals attached to the substituent nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/40" definition-exists="false" ipc-concordant="C07D213/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acylated substituent nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/42" definition-exists="false" ipc-concordant="C07D213/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having hetero atoms attached to the substituent nitrogen atom </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D213/26</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/44" definition-exists="false" ipc-concordant="C07D213/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two such atoms singly-bound to the same carbon atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/46" definition-exists="false" ipc-concordant="C07D213/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/48" definition-exists="false" ipc-concordant="C07D213/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aldehydo radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/50" definition-exists="false" ipc-concordant="C07D213/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ketonic radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/51" definition-exists="false" ipc-concordant="C07D213/51" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/51</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acetal radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/52" definition-exists="false" ipc-concordant="C07D213/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/53" definition-exists="false" ipc-concordant="C07D213/53" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/53</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/54" definition-exists="false" ipc-concordant="C07D213/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D213/54</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/55" definition-exists="false" ipc-concordant="C07D213/55" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/55</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acids</text></title-part><title-part><text>Esters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/56" definition-exists="false" ipc-concordant="C07D213/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Amides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/57" definition-exists="false" ipc-concordant="C07D213/57" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/57</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitriles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/58" definition-exists="false" ipc-concordant="C07D213/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Amidines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/59" definition-exists="false" ipc-concordant="C07D213/59" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/59</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with at least one of the bonds being to sulfur</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D213/60" definition-exists="false" ipc-concordant="C07D213/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D213/60</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/61" definition-exists="false" ipc-concordant="C07D213/61" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/61</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms or nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/62" definition-exists="false" ipc-concordant="C07D213/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen or sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/63" definition-exists="false" ipc-concordant="C07D213/63" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/63</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One oxygen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/64" definition-exists="false" ipc-concordant="C07D213/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 2 or 6</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D213/643" definition-exists="false" ipc-concordant="C07D213/643" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/643</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>2-Phenoxypyridines</text></title-part><title-part><text>Derivatives thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D213/647" definition-exists="false" ipc-concordant="C07D213/647" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/647</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>and having in the molecule an acyl radical containing a saturated three-membered ring, e.g. chrysanthemumic acid esters</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/65" definition-exists="false" ipc-concordant="C07D213/65" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/65</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 3 or 5</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D213/66" definition-exists="false" ipc-concordant="C07D213/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D213/66</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>having in position 3 an oxygen atom and in each of the positions 4 and 5 a carbon atom bound to an oxygen, sulphur, or nitrogen atom, e.g. pyridoxal</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D213/67" definition-exists="false" ipc-concordant="C07D213/67" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/67</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>2-Methyl-3-hydroxy-4,5-bis(hydroxy-methyl)pyridine, i.e. pyridoxine</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/68" definition-exists="false" ipc-concordant="C07D213/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 4</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/69" definition-exists="false" ipc-concordant="C07D213/69" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/69</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two or more oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/70" definition-exists="false" ipc-concordant="C07D213/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>C07D213/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/71" definition-exists="false" ipc-concordant="C07D213/71" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>C07D213/71</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to which a second hetero atom is attached</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/72" definition-exists="false" ipc-concordant="C07D213/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D213/61</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/73" definition-exists="false" ipc-concordant="C07D213/73" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/73</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Unsubstituted amino or imino radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/74" definition-exists="false" ipc-concordant="C07D213/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/75" definition-exists="false" ipc-concordant="C07D213/75" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/75</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/76" definition-exists="false" ipc-concordant="C07D213/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to which a second hetero atom is attached </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D213/61</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/77" definition-exists="false" ipc-concordant="C07D213/77" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/77</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydrazine radicals</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D213/78" definition-exists="false" ipc-concordant="C07D213/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D213/78</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/79" definition-exists="false" ipc-concordant="C07D213/79" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/79</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acids</text></title-part><title-part><text>Esters</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/80" definition-exists="false" ipc-concordant="C07D213/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in position 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/803" definition-exists="false" ipc-concordant="C07D213/803" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/803</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Processes of preparation</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D213/807" definition-exists="false" ipc-concordant="C07D213/807" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-11-05" status="published"><classification-symbol>C07D213/807</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by oxidation of pyridines or condensed pyridines</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/81" definition-exists="false" ipc-concordant="C07D213/81" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/81</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Amides</text></title-part><title-part><text>Imides</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/82" definition-exists="false" ipc-concordant="C07D213/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in position 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/83" definition-exists="false" ipc-concordant="C07D213/83" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D213/83</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Thioacids</text></title-part><title-part><text>Thioesters</text></title-part><title-part><text>Thioamides</text></title-part><title-part><text>Thioimides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/84" definition-exists="false" ipc-concordant="C07D213/84" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/84</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitriles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/85" definition-exists="false" ipc-concordant="C07D213/85" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/85</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in position 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/86" definition-exists="false" ipc-concordant="C07D213/86" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydrazides</text></title-part><title-part><text>Thio or imino analogues thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D213/87" definition-exists="false" ipc-concordant="C07D213/87" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/87</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in position 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D213/88" definition-exists="false" ipc-concordant="C07D213/88" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>C07D213/88</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nicotinoylhydrazones</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D213/89" definition-exists="false" ipc-concordant="C07D213/89" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/89</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D213/90" definition-exists="false" ipc-concordant="C07D213/90" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D213/90</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having more than three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D215/00" definition-exists="false" ipc-concordant="C07D215/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D215/02" definition-exists="false" ipc-concordant="C07D215/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D215/04" definition-exists="false" ipc-concordant="C07D215/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to the ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D215/06" definition-exists="false" ipc-concordant="C07D215/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D215/08" definition-exists="false" ipc-concordant="C07D215/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with acylated ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D215/10" definition-exists="false" ipc-concordant="C07D215/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Quaternary compounds</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D215/12" definition-exists="false" ipc-concordant="C07D215/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D215/14" definition-exists="false" ipc-concordant="C07D215/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D215/16" definition-exists="false" ipc-concordant="C07D215/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D215/18" definition-exists="false" ipc-concordant="C07D215/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms or nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D215/20" definition-exists="true" ipc-concordant="C07D215/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D215/20</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D215/22" definition-exists="false" ipc-concordant="C07D215/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 2 or 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D215/227" definition-exists="false" ipc-concordant="C07D215/227" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/227</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>only one oxygen atom which is attached in position 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D215/233" definition-exists="false" ipc-concordant="C07D215/233" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/233</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>only one oxygen atom which is attached in position 4</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D215/24" definition-exists="false" ipc-concordant="C07D215/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 8</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D215/26" definition-exists="false" ipc-concordant="C07D215/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alcohols</text></title-part><title-part><text>Ethers thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D215/28" definition-exists="false" ipc-concordant="C07D215/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with halogen atoms or nitro radicals in positions 5, 6 or 7</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D215/30" definition-exists="false" ipc-concordant="C07D215/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Metal salts</text></title-part><title-part><text>Chelates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D215/32" definition-exists="false" ipc-concordant="C07D215/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Esters</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D215/34" definition-exists="false" ipc-concordant="C07D215/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbamates</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D215/36" definition-exists="false" ipc-concordant="C07D215/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms </text><reference><text><class-ref scheme="cpc">C07D215/24</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D215/38" definition-exists="false" ipc-concordant="C07D215/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D215/18</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D215/40" definition-exists="false" ipc-concordant="C07D215/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 8</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D215/42" definition-exists="false" ipc-concordant="C07D215/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D215/44" definition-exists="false" ipc-concordant="C07D215/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aryl radicals attached to said nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D215/46" definition-exists="false" ipc-concordant="C07D215/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by nitrogen atoms, attached to said nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D215/48" definition-exists="false" ipc-concordant="C07D215/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D215/50" definition-exists="false" ipc-concordant="C07D215/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D215/52" definition-exists="false" ipc-concordant="C07D215/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aryl radicals attached in position 2</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D215/54" definition-exists="false" ipc-concordant="C07D215/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 3</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D215/56" definition-exists="false" ipc-concordant="C07D215/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms in position 4</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D215/58" definition-exists="false" ipc-concordant="C07D215/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D215/60" definition-exists="false" ipc-concordant="C07D215/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D215/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>N-oxides</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D217/00" definition-exists="false" ipc-concordant="C07D217/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D217/02" definition-exists="false" ipc-concordant="C07D217/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only carbon and hydrogen atoms, directly attached to carbon atoms of the nitrogen-containing ring</text></title-part><title-part><text>Alkylene-bis-isoquinolines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D217/04" definition-exists="false" ipc-concordant="C07D217/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon or substituted hydrocarbon radicals attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D217/06" definition-exists="false" ipc-concordant="C07D217/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atom acylated by carboxylic or carbonic acids, or with sulfur or nitrogen analogues thereof, e.g. carbamates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D217/08" definition-exists="false" ipc-concordant="C07D217/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a hetero atom directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D217/10" definition-exists="false" ipc-concordant="C07D217/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Quaternary compounds</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D217/12" definition-exists="false" ipc-concordant="C07D217/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D217/14" definition-exists="false" ipc-concordant="C07D217/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>other than aralkyl radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D217/16" definition-exists="false" ipc-concordant="C07D217/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted by oxygen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D217/18" definition-exists="false" ipc-concordant="C07D217/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aralkyl radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D217/20" definition-exists="false" ipc-concordant="C07D217/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms directly attached to the aromatic ring of said aralkyl radical, e.g. papaverine</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D217/22" definition-exists="false" ipc-concordant="C07D217/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the nitrogen-containing ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D217/24" definition-exists="false" ipc-concordant="C07D217/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D217/26" definition-exists="false" ipc-concordant="C07D217/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D217/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D219/00" definition-exists="false" ipc-concordant="C07D219/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D219/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing acridine or hydrogenated acridine ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D219/02" definition-exists="false" ipc-concordant="C07D219/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D219/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D219/04" definition-exists="false" ipc-concordant="C07D219/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D219/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D219/06" definition-exists="false" ipc-concordant="C07D219/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D219/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D219/08" definition-exists="true" ipc-concordant="C07D219/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D219/08</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D219/10" definition-exists="false" ipc-concordant="C07D219/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D219/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 9</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D219/12" definition-exists="false" ipc-concordant="C07D219/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D219/12</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Amino-alkylamino radicals attached in position 9</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D219/14" definition-exists="false" ipc-concordant="C07D219/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D219/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by nitrogen atoms, attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D219/16" definition-exists="false" ipc-concordant="C07D219/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D219/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with acyl radicals, substituted by nitrogen atoms, attached to the ring nitrogen atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D221/00" definition-exists="false" ipc-concordant="C07D221/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D221/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups <class-ref scheme="cpc">C07D211/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D219/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D221/02" definition-exists="false" ipc-concordant="C07D221/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D221/04" definition-exists="false" ipc-concordant="C07D221/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D221/04</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Ortho- or peri-condensed ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D221/06" definition-exists="false" ipc-concordant="C07D221/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ring systems of three rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D221/08" definition-exists="true" ipc-concordant="C07D221/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D221/08</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Aza-anthracenes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D221/10" definition-exists="false" ipc-concordant="C07D221/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aza-phenanthrenes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D221/12" definition-exists="false" ipc-concordant="C07D221/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Phenanthridines</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D221/14" definition-exists="false" ipc-concordant="C07D221/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aza-phenalenes, e.g. 1,8-naphthalimide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D221/16" definition-exists="false" ipc-concordant="C07D221/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing carbocyclic rings other than six-membered</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D221/18" definition-exists="false" ipc-concordant="C07D221/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ring systems of four or more rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D221/20" definition-exists="false" ipc-concordant="C07D221/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed ring systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D221/22" definition-exists="false" ipc-concordant="C07D221/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D221/24" definition-exists="false" ipc-concordant="C07D221/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Camphidines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D221/26" definition-exists="false" ipc-concordant="C07D221/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzomorphans</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D221/28" definition-exists="false" ipc-concordant="C07D221/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D221/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Morphinans</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D223/00" definition-exists="false" ipc-concordant="C07D223/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D223/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Hexamethylene imines or 3-azabicyclo [3.2.2] nonanes, having only hydrogen atoms attached to the ring carbon atoms, are classified in group <class-ref scheme="cpc">C07D295/00</class-ref>.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D223/02" definition-exists="false" ipc-concordant="C07D223/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D223/04" definition-exists="false" ipc-concordant="C07D223/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, halogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D223/06" definition-exists="false" ipc-concordant="C07D223/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms </text><reference><text>halogen atoms <class-ref scheme="cpc">C07D223/04</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D223/08" definition-exists="false" ipc-concordant="C07D223/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D223/10" definition-exists="false" ipc-concordant="C07D223/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 2</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D223/12" definition-exists="false" ipc-concordant="C07D223/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D223/14" definition-exists="false" ipc-concordant="C07D223/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D223/16" definition-exists="false" ipc-concordant="C07D223/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzazepines</text></title-part><title-part><text>Hydrogenated benzazepines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D223/18" definition-exists="false" ipc-concordant="C07D223/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dibenzazepines</text></title-part><title-part><text>Hydrogenated dibenzazepines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D223/20" definition-exists="false" ipc-concordant="C07D223/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dibenz [b, e] azepines</text></title-part><title-part><text>Hydrogenated dibenz [b, e] azepines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D223/22" definition-exists="false" ipc-concordant="C07D223/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dibenz [b, f] azepines</text></title-part><title-part><text>Hydrogenated dibenz [b, f] azepines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D223/24" definition-exists="false" ipc-concordant="C07D223/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by nitrogen atoms, attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D223/26" definition-exists="false" ipc-concordant="C07D223/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a double bond between positions 10 and 11</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D223/28" definition-exists="false" ipc-concordant="C07D223/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a single bond between positions 10 and 11</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D223/30" definition-exists="false" ipc-concordant="C07D223/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D223/32" definition-exists="false" ipc-concordant="C07D223/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D223/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing carbocyclic rings other than six-membered</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D225/00" definition-exists="false" ipc-concordant="C07D225/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D225/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings of more than seven members having one nitrogen atom as the only ring hetero atom</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Polymethyleneimines with at least five ring members and having only hydrogen atoms attached to the ring carbon atoms are classified in group <class-ref scheme="cpc">C07D295/00</class-ref>.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D225/02" definition-exists="false" ipc-concordant="C07D225/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D225/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D225/04" definition-exists="false" ipc-concordant="C07D225/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D225/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D225/06" definition-exists="false" ipc-concordant="C07D225/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D225/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D225/08" definition-exists="false" ipc-concordant="C07D225/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D225/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with two six-membered rings</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D227/00" definition-exists="false" ipc-concordant="C07D227/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D227/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing rings having one nitrogen atom as the only ring hetero atom, according to more than one of groups <class-ref scheme="cpc">C07D203/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D225/00</class-ref></text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Polymethyleneimines with at least five ring members and having only hydrogen atoms attached to the ring carbon atoms are classified in group <class-ref scheme="cpc">C07D295/00</class-ref>.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D227/02" definition-exists="false" ipc-concordant="C07D227/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D227/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen or carbon atoms directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D227/04" definition-exists="false" ipc-concordant="C07D227/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D227/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D227/06" definition-exists="false" ipc-concordant="C07D227/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D227/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D227/08" definition-exists="false" ipc-concordant="C07D227/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D227/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D227/087" definition-exists="false" ipc-concordant="C07D227/087" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D227/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One doubly-bound oxygen atom in position 2, e.g. lactams</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D227/093" definition-exists="false" ipc-concordant="C07D227/093" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D227/093</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two doubly-bound oxygen atoms attached to the carbon atoms adjacent to the ring nitrogen atom, e.g. dicarboxylic acid imides</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D227/10" definition-exists="false" ipc-concordant="C07D227/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D227/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D227/12" definition-exists="false" ipc-concordant="C07D227/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D227/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D229/00" definition-exists="false" ipc-concordant="C07D229/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D229/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings of less than five members having two nitrogen atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D229/02" definition-exists="false" ipc-concordant="C07D229/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D229/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing three-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D231/00" definition-exists="false" ipc-concordant="C07D231/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D231/02" definition-exists="false" ipc-concordant="C07D231/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D231/04" definition-exists="false" ipc-concordant="C07D231/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D231/06" definition-exists="false" ipc-concordant="C07D231/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D231/06</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D231/08" definition-exists="false" ipc-concordant="C07D231/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen or sulfur atoms directly attached to ring carbon atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D231/10" definition-exists="false" ipc-concordant="C07D231/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D231/12" definition-exists="false" ipc-concordant="C07D231/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D231/14" definition-exists="false" ipc-concordant="C07D231/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D231/16" definition-exists="false" ipc-concordant="C07D231/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms or nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D231/18" definition-exists="false" ipc-concordant="C07D231/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One oxygen or sulfur atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D231/20" definition-exists="false" ipc-concordant="C07D231/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D231/20</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>One oxygen atom attached in position 3 or 5</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D231/22" definition-exists="false" ipc-concordant="C07D231/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aryl radicals attached to ring nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D231/24" definition-exists="false" ipc-concordant="C07D231/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having sulfone or sulfonic acid radicals in the molecule</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D231/26" definition-exists="false" ipc-concordant="C07D231/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1-Phenyl-3-methyl-5- pyrazolones, unsubstituted or substituted on the phenyl ring</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D231/28" definition-exists="false" ipc-concordant="C07D231/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two oxygen or sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D231/30" definition-exists="false" ipc-concordant="C07D231/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D231/30</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>attached in positions 3 and 5</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D231/32" definition-exists="false" ipc-concordant="C07D231/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D231/34" definition-exists="false" ipc-concordant="C07D231/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached in position 4</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D231/36" definition-exists="false" ipc-concordant="C07D231/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by hetero atoms, attached in position 4</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D231/38" definition-exists="false" ipc-concordant="C07D231/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D231/16</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D231/40" definition-exists="false" ipc-concordant="C07D231/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acylated on said nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D231/42" definition-exists="false" ipc-concordant="C07D231/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzene-sulfonamido pyrazoles</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D231/44" definition-exists="false" ipc-concordant="C07D231/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen and nitrogen or sulfur and nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D231/46" definition-exists="false" ipc-concordant="C07D231/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atom in position 3 or 5 and nitrogen atom in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D231/48" definition-exists="false" ipc-concordant="C07D231/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals attached to said nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D231/50" definition-exists="false" ipc-concordant="C07D231/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acylated on said nitrogen atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D231/52" definition-exists="false" ipc-concordant="C07D231/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>C07D231/52</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>Oxygen atom in position 3 and nitrogen atom in position 5, or <u>vice versa</u></text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D231/54" definition-exists="false" ipc-concordant="C07D231/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D231/54</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D231/56" definition-exists="false" ipc-concordant="C07D231/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D231/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzopyrazoles</text></title-part><title-part><text>Hydrogenated benzopyrazoles</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D233/00" definition-exists="false" ipc-concordant="C07D233/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D233/02" definition-exists="false" ipc-concordant="C07D233/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D233/04" definition-exists="false" ipc-concordant="C07D233/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D233/06" definition-exists="false" ipc-concordant="C07D233/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/08" definition-exists="false" ipc-concordant="C07D233/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with alkyl radicals, containing more than four carbon atoms, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/10" definition-exists="false" ipc-concordant="C07D233/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/12" definition-exists="false" ipc-concordant="C07D233/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to ring nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/14" definition-exists="false" ipc-concordant="C07D233/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/16" definition-exists="false" ipc-concordant="C07D233/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/18" definition-exists="false" ipc-concordant="C07D233/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D233/18</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D233/20" definition-exists="false" ipc-concordant="C07D233/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/22" definition-exists="false" ipc-concordant="C07D233/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/24" definition-exists="false" ipc-concordant="C07D233/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/26" definition-exists="false" ipc-concordant="C07D233/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D233/28" definition-exists="false" ipc-concordant="C07D233/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/30" definition-exists="false" ipc-concordant="C07D233/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen or sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/32" definition-exists="false" ipc-concordant="C07D233/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One oxygen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/34" definition-exists="false" ipc-concordant="C07D233/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D233/34</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Ethylene-urea</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/36" definition-exists="false" ipc-concordant="C07D233/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by nitrogen atoms, attached to ring nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/38" definition-exists="false" ipc-concordant="C07D233/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with acyl radicals or hetero atoms directly attached to ring nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/40" definition-exists="false" ipc-concordant="C07D233/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two or more oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/42" definition-exists="false" ipc-concordant="C07D233/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/44" definition-exists="false" ipc-concordant="C07D233/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/46" definition-exists="false" ipc-concordant="C07D233/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms attached to said nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/48" definition-exists="false" ipc-concordant="C07D233/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with acyclic hydrocarbon or substituted acyclic hydrocarbon radicals, attached to said nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/50" definition-exists="false" ipc-concordant="C07D233/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-11-01" status="published"><classification-symbol>C07D233/50</classification-symbol><class-title date-revised="2016-11-01"><title-part><text>with carbocyclic radicals directly attached to said nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/52" definition-exists="false" ipc-concordant="C07D233/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to said nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D233/54" definition-exists="false" ipc-concordant="C07D233/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D233/56" definition-exists="false" ipc-concordant="C07D233/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/58" definition-exists="false" ipc-concordant="C07D233/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/60" definition-exists="false" ipc-concordant="C07D233/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by oxygen or sulfur atoms, attached to ring nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/61" definition-exists="false" ipc-concordant="C07D233/61" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/61</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by nitrogen atoms not forming part of a nitro radical, attached to ring nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/62" definition-exists="true" ipc-concordant="C07D233/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D233/62</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with triarylmethyl radicals attached to ring nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D233/64" definition-exists="false" ipc-concordant="C07D233/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to ring carbon atoms, e.g. histidine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D233/66" definition-exists="false" ipc-concordant="C07D233/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D233/66</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/68" definition-exists="false" ipc-concordant="C07D233/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/70" definition-exists="false" ipc-concordant="C07D233/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One oxygen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/72" definition-exists="false" ipc-concordant="C07D233/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two oxygen atoms, e.g. hydantoin</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/74" definition-exists="false" ipc-concordant="C07D233/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to other ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/76" definition-exists="false" ipc-concordant="C07D233/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to the third ring carbon atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/78" definition-exists="false" ipc-concordant="C07D233/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/80" definition-exists="false" ipc-concordant="C07D233/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or acyl radicals directly attached to ring nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/82" definition-exists="false" ipc-concordant="C07D233/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/84" definition-exists="false" ipc-concordant="C07D233/84" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/84</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/86" definition-exists="false" ipc-concordant="C07D233/86" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen and sulfur atoms, e.g. thiohydantoin</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/88" definition-exists="true" ipc-concordant="C07D233/88" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D233/88</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Nitrogen atoms, e.g. allantoin</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/90" definition-exists="false" ipc-concordant="C07D233/90" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/90</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D233/91" definition-exists="false" ipc-concordant="C07D233/91" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/91</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitro radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D233/92" definition-exists="false" ipc-concordant="C07D233/92" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/92</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 4 or 5</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/93" definition-exists="false" ipc-concordant="C07D233/93" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/93</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by halogen atoms, attached to other ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/94" definition-exists="false" ipc-concordant="C07D233/94" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/94</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by oxygen or sulfur atoms, attached to other ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D233/95" definition-exists="false" ipc-concordant="C07D233/95" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/95</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by nitrogen atoms, attached to other ring members</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D233/96" definition-exists="false" ipc-concordant="C07D233/96" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D233/96</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D235/00" definition-exists="false" ipc-concordant="C07D235/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D235/02" definition-exists="false" ipc-concordant="C07D235/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D235/04" definition-exists="false" ipc-concordant="C07D235/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzimidazoles</text></title-part><title-part><text>Hydrogenated benzimidazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D235/06" definition-exists="false" ipc-concordant="C07D235/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D235/08" definition-exists="false" ipc-concordant="C07D235/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals containing only hydrogen and carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D235/10" definition-exists="false" ipc-concordant="C07D235/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by halogen atoms or nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D235/12" definition-exists="false" ipc-concordant="C07D235/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D235/14" definition-exists="false" ipc-concordant="C07D235/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms </text><reference><text>by nitro radicals <class-ref scheme="cpc">C07D235/10</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D235/16" definition-exists="false" ipc-concordant="C07D235/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D235/18" definition-exists="false" ipc-concordant="C07D235/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aryl radicals directly attached in position 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D235/20" definition-exists="false" ipc-concordant="C07D235/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two benzimidazolyl-2 radicals linked together directly or via a hydrocarbon or substituted hydrocarbon radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D235/22" definition-exists="false" ipc-concordant="C07D235/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to ring nitrogen atoms </text><reference><text><class-ref scheme="cpc">C07D235/10</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D235/24" definition-exists="false" ipc-concordant="C07D235/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D235/26" definition-exists="false" ipc-concordant="C07D235/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D235/28" definition-exists="false" ipc-concordant="C07D235/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D235/30" definition-exists="false" ipc-concordant="C07D235/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D235/32" definition-exists="false" ipc-concordant="C07D235/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D235/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzimidazole-2-carbamic acids, unsubstituted or substituted</text></title-part><title-part><text>Esters thereof</text></title-part><title-part><text>Thio-analogues thereof</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D237/00" definition-exists="false" ipc-concordant="C07D237/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D237/02" definition-exists="false" ipc-concordant="C07D237/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D237/04" definition-exists="false" ipc-concordant="C07D237/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having less than three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D237/06" definition-exists="false" ipc-concordant="C07D237/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D237/08" definition-exists="false" ipc-concordant="C07D237/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D237/10" definition-exists="false" ipc-concordant="C07D237/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D237/12" definition-exists="false" ipc-concordant="C07D237/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms or nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D237/14" definition-exists="false" ipc-concordant="C07D237/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D237/16" definition-exists="false" ipc-concordant="C07D237/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two oxygen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D237/18" definition-exists="false" ipc-concordant="C07D237/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D237/20" definition-exists="false" ipc-concordant="C07D237/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D237/12</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D237/22" definition-exists="false" ipc-concordant="C07D237/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen and oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D237/24" definition-exists="false" ipc-concordant="C07D237/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D237/26" definition-exists="false" ipc-concordant="C07D237/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D237/28" definition-exists="false" ipc-concordant="C07D237/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cinnolines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D237/30" definition-exists="false" ipc-concordant="C07D237/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Phthalazines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D237/32" definition-exists="false" ipc-concordant="C07D237/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms directly attached to carbon atoms of the nitrogen-containing ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D237/34" definition-exists="false" ipc-concordant="C07D237/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with nitrogen atoms directly attached to carbon atoms of the nitrogen-containing ring, e.g. hydrazine radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D237/36" definition-exists="false" ipc-concordant="C07D237/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D237/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzo-cinnolines</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D239/00" definition-exists="false" ipc-concordant="C07D239/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D239/02" definition-exists="false" ipc-concordant="C07D239/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D239/04" definition-exists="false" ipc-concordant="C07D239/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D239/06" definition-exists="false" ipc-concordant="C07D239/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D239/08" definition-exists="false" ipc-concordant="C07D239/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D239/08</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hetero atoms directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/10" definition-exists="false" ipc-concordant="C07D239/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen or sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/12" definition-exists="false" ipc-concordant="C07D239/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/14" definition-exists="false" ipc-concordant="C07D239/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D239/14</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached to said nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/16" definition-exists="false" ipc-concordant="C07D239/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>acylated on said nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/18" definition-exists="false" ipc-concordant="C07D239/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms attached to said nitrogen atoms, except nitro radicals, e.g. hydrazine radicals</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D239/20" definition-exists="false" ipc-concordant="C07D239/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D239/22" definition-exists="false" ipc-concordant="C07D239/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to ring carbon atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D239/24" definition-exists="false" ipc-concordant="C07D239/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having three or more double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D239/26" definition-exists="false" ipc-concordant="C07D239/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D239/28" definition-exists="false" ipc-concordant="C07D239/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/30" definition-exists="false" ipc-concordant="C07D239/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms or nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/32" definition-exists="false" ipc-concordant="C07D239/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One oxygen, sulfur or nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/34" definition-exists="false" ipc-concordant="C07D239/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One oxygen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D239/36" definition-exists="false" ipc-concordant="C07D239/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D239/36</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>as doubly bound oxygen atom or as unsubstituted hydroxy radical</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/38" definition-exists="false" ipc-concordant="C07D239/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One sulfur atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D239/40" definition-exists="false" ipc-concordant="C07D239/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>as doubly bound sulfur atom or as unsubstituted mercapto radical</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/42" definition-exists="true" ipc-concordant="C07D239/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D239/42</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>One nitrogen atom </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D239/30</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/46" definition-exists="true" ipc-concordant="C07D239/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D239/46</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Two or more oxygen, sulphur or nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/47" definition-exists="false" ipc-concordant="C07D239/47" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/47</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One nitrogen atom and one oxygen or sulfur atom, e.g. cytosine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/48" definition-exists="false" ipc-concordant="C07D239/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D239/49" definition-exists="false" ipc-concordant="C07D239/49" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/49</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an aralkyl radical, or substituted aralkyl radical, attached in position 5, e.g. trimethoprim</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/50" definition-exists="false" ipc-concordant="C07D239/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Three nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/52" definition-exists="false" ipc-concordant="C07D239/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D239/54" definition-exists="false" ipc-concordant="C07D239/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>as doubly bound oxygen atoms or as unsubstituted hydroxy radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D239/545" definition-exists="false" ipc-concordant="C07D239/545" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/545</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with other hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D239/553" definition-exists="false" ipc-concordant="C07D239/553" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/553</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with halogen atoms or nitro radicals directly attached to ring carbon atoms, e.g. fluorouracil</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D239/557" definition-exists="false" ipc-concordant="C07D239/557" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/557</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms, e.g. orotic acid</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/56" definition-exists="false" ipc-concordant="C07D239/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One oxygen atom and one sulfur atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/58" definition-exists="false" ipc-concordant="C07D239/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/60" definition-exists="false" ipc-concordant="C07D239/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Three or more oxygen or sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D239/62" definition-exists="false" ipc-concordant="C07D239/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Barbituric acids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D239/64" definition-exists="false" ipc-concordant="C07D239/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Salts of organic bases</text></title-part><title-part><text>Organic double compounds</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D239/66" definition-exists="false" ipc-concordant="C07D239/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Thiobarbituric acids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D239/68" definition-exists="false" ipc-concordant="C07D239/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D239/68</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Salts of organic bases</text></title-part><title-part><text>Organic double compounds</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/69" definition-exists="false" ipc-concordant="C07D239/69" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/69</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzenesulfonamido-pyrimidines</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D239/70" definition-exists="false" ipc-concordant="C07D239/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D239/72" definition-exists="false" ipc-concordant="C07D239/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Quinazolines</text></title-part><title-part><text>Hydrogenated quinazolines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D239/74" definition-exists="false" ipc-concordant="C07D239/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached to ring carbon atoms of the hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/76" definition-exists="false" ipc-concordant="C07D239/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>N-oxides</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D239/78" definition-exists="false" ipc-concordant="C07D239/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/80" definition-exists="false" ipc-concordant="C07D239/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/82" definition-exists="false" ipc-concordant="C07D239/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an aryl radical attached in position 4</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/84" definition-exists="false" ipc-concordant="C07D239/84" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/84</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D239/86" definition-exists="false" ipc-concordant="C07D239/86" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/88" definition-exists="false" ipc-concordant="C07D239/88" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/88</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/90" definition-exists="false" ipc-concordant="C07D239/90" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D239/90</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with acyclic radicals attached in position 2 or 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/91" definition-exists="false" ipc-concordant="C07D239/91" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D239/91</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with aryl or aralkyl radicals attached in position 2 or 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D239/92" definition-exists="false" ipc-concordant="C07D239/92" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/92</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to nitrogen atoms of the hetero ring</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/93" definition-exists="false" ipc-concordant="C07D239/93" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/93</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/94" definition-exists="false" ipc-concordant="C07D239/94" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/94</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D239/95" definition-exists="false" ipc-concordant="C07D239/95" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D239/95</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>with hetero atoms directly attached in positions 2 and 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D239/96" definition-exists="false" ipc-concordant="C07D239/96" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D239/96</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two oxygen atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D241/00" definition-exists="false" ipc-concordant="C07D241/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D241/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Piperazines with only hydrogen atoms directly attached to ring carbon atoms are classified in group <class-ref scheme="cpc">C07D295/00</class-ref>.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D241/02" definition-exists="false" ipc-concordant="C07D241/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D241/04" definition-exists="false" ipc-concordant="C07D241/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D241/06" definition-exists="false" ipc-concordant="C07D241/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one or two double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D241/08" definition-exists="false" ipc-concordant="C07D241/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms directly attached to ring carbon atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D241/10" definition-exists="false" ipc-concordant="C07D241/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D241/12" definition-exists="false" ipc-concordant="C07D241/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D241/14" definition-exists="false" ipc-concordant="C07D241/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D241/16" definition-exists="false" ipc-concordant="C07D241/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms</text></title-part><title-part><text>Nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D241/18" definition-exists="false" ipc-concordant="C07D241/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen or sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D241/20" definition-exists="false" ipc-concordant="C07D241/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D241/16</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D241/22" definition-exists="false" ipc-concordant="C07D241/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzenesulfonamido pyrazines</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D241/24" definition-exists="false" ipc-concordant="C07D241/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D241/26" definition-exists="false" ipc-concordant="C07D241/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with nitrogen atoms directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D241/28" definition-exists="false" ipc-concordant="C07D241/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>C07D241/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which said hetero-bound carbon atoms have double bonds to oxygen, sulfur or nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D241/30" definition-exists="false" ipc-concordant="C07D241/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D241/30</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>in which said hetero-bound carbon atoms are part of a substructure &#8212;C(=X)&#8212;X&#8212;C(=X)&#8212;X&#8212; in which X is an oxygen or sulphur atom or an imino radical, e.g. imidoylguanidines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D241/32" definition-exists="false" ipc-concordant="C07D241/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>(Amino-pyrazinoyl) guanidines</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D241/34" definition-exists="false" ipc-concordant="C07D241/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>C07D241/34</classification-symbol><class-title date-revised="2019-02-01"><title-part><text>(Amino-pyrazine carbonamido) guanidines</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D241/36" definition-exists="false" ipc-concordant="C07D241/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D241/38" definition-exists="false" ipc-concordant="C07D241/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D241/40" definition-exists="false" ipc-concordant="C07D241/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzopyrazines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D241/42" definition-exists="false" ipc-concordant="C07D241/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D241/44" definition-exists="false" ipc-concordant="C07D241/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D241/46" definition-exists="false" ipc-concordant="C07D241/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Phenazines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D241/48" definition-exists="false" ipc-concordant="C07D241/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by nitrogen atoms, directly attached to the ring nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D241/50" definition-exists="false" ipc-concordant="C07D241/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to ring nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D241/52" definition-exists="false" ipc-concordant="C07D241/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D241/54" definition-exists="false" ipc-concordant="C07D241/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D241/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D243/00" definition-exists="false" ipc-concordant="C07D243/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D243/02" definition-exists="false" ipc-concordant="C07D243/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D243/02</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>having the nitrogen atoms in positions 1 and 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D243/04" definition-exists="false" ipc-concordant="C07D243/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D243/04</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>having the nitrogen atoms in positions 1 and 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D243/06" definition-exists="false" ipc-concordant="C07D243/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D243/06</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>having the nitrogen atoms in positions 1 and 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D243/08" definition-exists="false" ipc-concordant="C07D243/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D243/10" definition-exists="false" ipc-concordant="C07D243/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D243/12" definition-exists="false" ipc-concordant="C07D243/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,5-Benzodiazepines</text></title-part><title-part><text>Hydrogenated 1,5-benzodiazepines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D243/14" definition-exists="false" ipc-concordant="C07D243/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,4-Benzodiazepines</text></title-part><title-part><text>Hydrogenated 1,4-benzodiazepines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D243/16" definition-exists="false" ipc-concordant="C07D243/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted in position 5 by aryl radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D243/18" definition-exists="false" ipc-concordant="C07D243/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted in position 2 by nitrogen, oxygen or sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D243/20" definition-exists="false" ipc-concordant="C07D243/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D243/22" definition-exists="false" ipc-concordant="C07D243/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D243/24" definition-exists="false" ipc-concordant="C07D243/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D243/26" definition-exists="false" ipc-concordant="C07D243/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation from compounds already containing the benzodiazepine skeleton</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D243/28" definition-exists="false" ipc-concordant="C07D243/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation including building-up the benzodiazepine skeleton from compounds containing no hetero rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D243/30" definition-exists="false" ipc-concordant="C07D243/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation including building-up the benzodiazepine skeleton from compounds already containing hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D243/32" definition-exists="false" ipc-concordant="C07D243/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing a phthalimide or hydrogenated phthalimide ring system</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D243/34" definition-exists="false" ipc-concordant="C07D243/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing a quinazoline or hydrogenated quinazoline ring system</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D243/36" definition-exists="false" ipc-concordant="C07D243/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing an indole or hydrogenated indole ring system</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D243/38" definition-exists="false" ipc-concordant="C07D243/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D243/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b, e]- or [b, f]-condensed with six-membered rings</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D245/00" definition-exists="false" ipc-concordant="C07D245/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D245/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings of more than seven members having two nitrogen atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D245/02" definition-exists="false" ipc-concordant="C07D245/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D245/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D245/04" definition-exists="false" ipc-concordant="C07D245/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D245/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D245/06" definition-exists="false" ipc-concordant="C07D245/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D245/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D247/00" definition-exists="false" ipc-concordant="C07D247/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D247/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing rings having two nitrogen atoms as the only ring hetero atoms, according to more than one of groups <class-ref scheme="cpc">C07D229/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D245/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D247/02" definition-exists="false" ipc-concordant="C07D247/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D247/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the nitrogen atoms in positions 1 and 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D249/00" definition-exists="false" ipc-concordant="C07D249/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D249/02" definition-exists="false" ipc-concordant="C07D249/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D249/04" definition-exists="false" ipc-concordant="C07D249/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,3-Triazoles</text></title-part><title-part><text>Hydrogenated 1,2,3-triazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D249/06" definition-exists="false" ipc-concordant="C07D249/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aryl radicals directly attached to ring atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D249/08" definition-exists="false" ipc-concordant="C07D249/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,4-Triazoles</text></title-part><title-part><text>Hydrogenated 1,2,4-triazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D249/10" definition-exists="false" ipc-concordant="C07D249/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D249/12" definition-exists="false" ipc-concordant="C07D249/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen or sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D249/14" definition-exists="false" ipc-concordant="C07D249/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D249/16" definition-exists="false" ipc-concordant="C07D249/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D249/18" definition-exists="false" ipc-concordant="C07D249/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzotriazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D249/20" definition-exists="false" ipc-concordant="C07D249/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aryl radicals directly attached in position 2</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D249/22" definition-exists="false" ipc-concordant="C07D249/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D249/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Naphthotriazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D249/24" definition-exists="false" ipc-concordant="C07D249/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D249/24</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with stilbene radicals directly attached in position 2</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D251/00" definition-exists="false" ipc-concordant="C07D251/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,3,5-triazine rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D251/02" definition-exists="false" ipc-concordant="C07D251/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D251/04" definition-exists="false" ipc-concordant="C07D251/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D251/06" definition-exists="false" ipc-concordant="C07D251/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to ring nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D251/08" definition-exists="false" ipc-concordant="C07D251/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D251/10" definition-exists="false" ipc-concordant="C07D251/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D251/12" definition-exists="false" ipc-concordant="C07D251/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D251/14" definition-exists="false" ipc-concordant="C07D251/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrogen or carbon atoms directly attached to at least one ring carbon atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D251/16" definition-exists="false" ipc-concordant="C07D251/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to only one ring carbon atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D251/18" definition-exists="false" ipc-concordant="C07D251/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with nitrogen atoms directly attached to the two other ring carbon atoms, e.g. guanamines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D251/20" definition-exists="false" ipc-concordant="C07D251/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with no nitrogen atoms directly attached to a ring carbon atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D251/22" definition-exists="false" ipc-concordant="C07D251/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to two ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D251/24" definition-exists="false" ipc-concordant="C07D251/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to three ring carbon atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D251/26" definition-exists="false" ipc-concordant="C07D251/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hetero atoms directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D251/28" definition-exists="false" ipc-concordant="C07D251/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Only halogen atoms, e.g. cyanuric chloride</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D251/30" definition-exists="false" ipc-concordant="C07D251/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Only oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D251/32" definition-exists="false" ipc-concordant="C07D251/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cyanuric acid</text></title-part><title-part><text>Isocyanuric acid</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D251/34" definition-exists="false" ipc-concordant="C07D251/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cyanuric or isocyanuric esters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D251/36" definition-exists="false" ipc-concordant="C07D251/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having halogen atoms directly attached to ring nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D251/38" definition-exists="false" ipc-concordant="C07D251/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D251/40" definition-exists="false" ipc-concordant="C07D251/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D251/42" definition-exists="false" ipc-concordant="C07D251/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D251/44" definition-exists="false" ipc-concordant="C07D251/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with halogen atoms attached to the two other ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D251/46" definition-exists="false" ipc-concordant="C07D251/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen or sulfur atoms attached to the two other ring carbon atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D251/48" definition-exists="false" ipc-concordant="C07D251/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D251/50" definition-exists="false" ipc-concordant="C07D251/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a halogen atom attached to the third ring carbon atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D251/52" definition-exists="false" ipc-concordant="C07D251/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an oxygen or sulfur atom attached to the third ring carbon atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D251/54" definition-exists="false" ipc-concordant="C07D251/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Three nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D251/56" definition-exists="false" ipc-concordant="C07D251/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of melamine</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D251/58" definition-exists="false" ipc-concordant="C07D251/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from cyanamide, dicyanamide or calcium cyanamide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D251/60" definition-exists="false" ipc-concordant="C07D251/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from urea or from carbon dioxide and ammonia</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D251/62" definition-exists="false" ipc-concordant="C07D251/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Purification of melamine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D251/64" definition-exists="false" ipc-concordant="C07D251/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Condensation products of melamine with aldehydes</text></title-part><title-part><text>Derivatives thereof </text><reference><text>polycondensation products <class-ref scheme="cpc">C08G</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D251/66" definition-exists="false" ipc-concordant="C07D251/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Derivatives of melamine in which a hetero atom is directly attached to a nitrogen atom of melamine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D251/68" definition-exists="false" ipc-concordant="C07D251/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Triazinylamino stilbenes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D251/70" definition-exists="false" ipc-concordant="C07D251/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other substituted melamines</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D251/72" definition-exists="false" ipc-concordant="C07D251/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D251/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D253/00" definition-exists="false" ipc-concordant="C07D253/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D253/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing six-membered rings having three nitrogen atoms as the only ring hetero atoms, not provided for by group <class-ref scheme="cpc">C07D251/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D253/02" definition-exists="false" ipc-concordant="C07D253/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D253/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D253/04" definition-exists="false" ipc-concordant="C07D253/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D253/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,3-Triazines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D253/06" definition-exists="false" ipc-concordant="C07D253/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D253/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,4-Triazines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D253/065" definition-exists="false" ipc-concordant="C07D253/065" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D253/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D253/07" definition-exists="false" ipc-concordant="C07D253/07" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D253/07</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms, or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D253/075" definition-exists="false" ipc-concordant="C07D253/075" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D253/075</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two hetero atoms, in positions 3 and 5</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D253/08" definition-exists="false" ipc-concordant="C07D253/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D253/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D253/10" definition-exists="false" ipc-concordant="C07D253/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D253/10</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Condensed 1,2,4-triazines</text></title-part><title-part><text>Hydrogenated condensed 1,2,4-triazines</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D255/00" definition-exists="false" ipc-concordant="C07D255/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D255/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing rings having three nitrogen atoms as the only ring hetero atoms, not provided for by groups <class-ref scheme="cpc">C07D249/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D253/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D255/02" definition-exists="false" ipc-concordant="C07D255/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D255/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D255/04" definition-exists="false" ipc-concordant="C07D255/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D255/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D257/00" definition-exists="false" ipc-concordant="C07D257/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D257/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D257/02" definition-exists="false" ipc-concordant="C07D257/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D257/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D257/04" definition-exists="false" ipc-concordant="C07D257/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D257/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Five-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D257/06" definition-exists="false" ipc-concordant="C07D257/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D257/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with nitrogen atoms directly attached to the ring carbon atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D257/08" definition-exists="false" ipc-concordant="C07D257/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D257/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Six-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D257/10" definition-exists="false" ipc-concordant="C07D257/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D257/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D257/12" definition-exists="false" ipc-concordant="C07D257/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D257/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Six-membered rings having four nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D259/00" definition-exists="false" ipc-concordant="C07D259/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D259/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having more than four nitrogen atoms as the only ring hetero atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C07D261/00" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds having nitrogen and oxygen as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D261/00" definition-exists="false" ipc-concordant="C07D261/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D261/02" definition-exists="false" ipc-concordant="C07D261/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D261/04" definition-exists="false" ipc-concordant="C07D261/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D261/06" definition-exists="false" ipc-concordant="C07D261/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or more double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D261/08" definition-exists="false" ipc-concordant="C07D261/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D261/10" definition-exists="false" ipc-concordant="C07D261/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D261/12" definition-exists="false" ipc-concordant="C07D261/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D261/14" definition-exists="false" ipc-concordant="C07D261/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D261/16" definition-exists="false" ipc-concordant="C07D261/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D261/16</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Benzene-sulfonamido isoxazoles</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D261/18" definition-exists="false" ipc-concordant="C07D261/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D261/20" definition-exists="false" ipc-concordant="C07D261/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D261/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D263/00" definition-exists="false" ipc-concordant="C07D263/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D263/02" definition-exists="false" ipc-concordant="C07D263/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D263/04" definition-exists="false" ipc-concordant="C07D263/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D263/06" definition-exists="false" ipc-concordant="C07D263/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by oxygen atoms, attached to ring carbon atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D263/08" definition-exists="false" ipc-concordant="C07D263/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D263/10" definition-exists="false" ipc-concordant="C07D263/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D263/12" definition-exists="false" ipc-concordant="C07D263/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with radicals containing only hydrogen and carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D263/14" definition-exists="false" ipc-concordant="C07D263/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with radicals substituted by oxygen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D263/16" definition-exists="false" ipc-concordant="C07D263/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D263/18" definition-exists="false" ipc-concordant="C07D263/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D263/20" definition-exists="false" ipc-concordant="C07D263/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D263/22" definition-exists="false" ipc-concordant="C07D263/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to other ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D263/24" definition-exists="false" ipc-concordant="C07D263/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by oxygen atoms, attached to other ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D263/26" definition-exists="false" ipc-concordant="C07D263/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or acyl radicals directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D263/28" definition-exists="false" ipc-concordant="C07D263/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D263/30" definition-exists="false" ipc-concordant="C07D263/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D263/32" definition-exists="false" ipc-concordant="C07D263/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D263/34" definition-exists="false" ipc-concordant="C07D263/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D263/36" definition-exists="false" ipc-concordant="C07D263/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One oxygen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D263/38" definition-exists="false" ipc-concordant="C07D263/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D263/40" definition-exists="false" ipc-concordant="C07D263/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 4</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D263/42" definition-exists="false" ipc-concordant="C07D263/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 5</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D263/44" definition-exists="false" ipc-concordant="C07D263/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D263/46" definition-exists="false" ipc-concordant="C07D263/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D263/48" definition-exists="false" ipc-concordant="C07D263/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D263/50" definition-exists="false" ipc-concordant="C07D263/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D263/50</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Benzene-sulfonamido oxazoles</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D263/52" definition-exists="false" ipc-concordant="C07D263/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D263/54" definition-exists="false" ipc-concordant="C07D263/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzoxazoles</text></title-part><title-part><text>Hydrogenated benzoxazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D263/56" definition-exists="false" ipc-concordant="C07D263/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D263/57" definition-exists="false" ipc-concordant="C07D263/57" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/57</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aryl or substituted aryl radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D263/58" definition-exists="false" ipc-concordant="C07D263/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D263/60" definition-exists="false" ipc-concordant="C07D263/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Naphthoxazoles</text></title-part><title-part><text>Hydrogenated naphthoxazoles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D263/62" definition-exists="false" ipc-concordant="C07D263/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or more ring systems containing condensed 1,3-oxazole rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D263/64" definition-exists="false" ipc-concordant="C07D263/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D263/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked in positions 2 and 2&apos; by chains containing six-membered aromatic rings or ring systems containing such rings</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D265/00" definition-exists="false" ipc-concordant="C07D265/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D265/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing six-membered rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Morpholines having only hydrogen atoms attached to the ring carbon atoms are classified in group <class-ref scheme="cpc">C07D295/00</class-ref>.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D265/02" definition-exists="false" ipc-concordant="C07D265/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2-Oxazines</text></title-part><title-part><text>Hydrogenated 1,2-oxazines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D265/04" definition-exists="false" ipc-concordant="C07D265/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,3-Oxazines</text></title-part><title-part><text>Hydrogenated 1,3-oxazines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D265/06" definition-exists="false" ipc-concordant="C07D265/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D265/08" definition-exists="false" ipc-concordant="C07D265/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D265/10" definition-exists="false" ipc-concordant="C07D265/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms directly attached to ring carbon atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D265/12" definition-exists="false" ipc-concordant="C07D265/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D265/14" definition-exists="false" ipc-concordant="C07D265/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D265/16" definition-exists="false" ipc-concordant="C07D265/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen or carbon atoms directly attached in positions 2 and 4</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D265/18" definition-exists="false" ipc-concordant="C07D265/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached in position 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D265/20" definition-exists="false" ipc-concordant="C07D265/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D265/22" definition-exists="false" ipc-concordant="C07D265/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D265/24" definition-exists="false" ipc-concordant="C07D265/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached in positions 2 and 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D265/26" definition-exists="false" ipc-concordant="C07D265/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two oxygen atoms, e.g. isatoic anhydride</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D265/28" definition-exists="false" ipc-concordant="C07D265/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,4-Oxazines</text></title-part><title-part><text>Hydrogenated 1,4-oxazines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D265/30" definition-exists="false" ipc-concordant="C07D265/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D265/32" definition-exists="false" ipc-concordant="C07D265/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D265/33" definition-exists="false" ipc-concordant="C07D265/33" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/33</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two oxygen atoms, in positions 3 and 5</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D265/34" definition-exists="false" ipc-concordant="C07D265/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D265/36" definition-exists="false" ipc-concordant="C07D265/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D265/38" definition-exists="false" ipc-concordant="C07D265/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D265/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b, e]-condensed with two six-membered rings</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D267/00" definition-exists="false" ipc-concordant="C07D267/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings of more than six members having one nitrogen atom and one oxygen atom as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D267/02" definition-exists="false" ipc-concordant="C07D267/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seven-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D267/04" definition-exists="false" ipc-concordant="C07D267/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the hetero atoms in positions 1 and 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D267/06" definition-exists="false" ipc-concordant="C07D267/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the hetero atoms in positions 1 and 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D267/08" definition-exists="false" ipc-concordant="C07D267/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the hetero atoms in positions 1 and 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D267/10" definition-exists="false" ipc-concordant="C07D267/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D267/12" definition-exists="false" ipc-concordant="C07D267/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D267/14" definition-exists="false" ipc-concordant="C07D267/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D267/16" definition-exists="false" ipc-concordant="C07D267/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with two six-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D267/18" definition-exists="false" ipc-concordant="C07D267/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b, e]-condensed</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D267/20" definition-exists="false" ipc-concordant="C07D267/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b, f]-condensed</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D267/22" definition-exists="false" ipc-concordant="C07D267/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D267/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Eight-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D269/00" definition-exists="false" ipc-concordant="C07D269/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D269/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms according to more than one of groups <class-ref scheme="cpc">C07D261/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D267/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D269/02" definition-exists="false" ipc-concordant="C07D269/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D269/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the hetero atoms in positions 1 and 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D271/00" definition-exists="false" ipc-concordant="C07D271/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D271/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D271/02" definition-exists="false" ipc-concordant="C07D271/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D271/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D271/04" definition-exists="false" ipc-concordant="C07D271/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D271/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,3-Oxadiazoles</text></title-part><title-part><text>Hydrogenated 1,2,3-oxadiazoles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D271/06" definition-exists="false" ipc-concordant="C07D271/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D271/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,4-Oxadiazoles</text></title-part><title-part><text>Hydrogenated 1,2,4-oxadiazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D271/07" definition-exists="false" ipc-concordant="C07D271/07" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D271/07</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen, sulfur or nitrogen atoms, directly attached to ring carbon atoms, the nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D271/08" definition-exists="false" ipc-concordant="C07D271/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D271/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,5-Oxadiazoles</text></title-part><title-part><text>Hydrogenated 1,2,5-oxadiazoles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D271/10" definition-exists="false" ipc-concordant="C07D271/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D271/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,3,4-Oxadiazoles</text></title-part><title-part><text>Hydrogenated 1,3,4-oxadiazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D271/107" definition-exists="false" ipc-concordant="C07D271/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D271/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two aryl or substituted aryl radicals attached in positions 2 and 5</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D271/113" definition-exists="false" ipc-concordant="C07D271/113" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D271/113</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen, sulfur or nitrogen atoms, directly attached to ring carbon atoms, the nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D271/12" definition-exists="false" ipc-concordant="C07D271/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D271/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D273/00" definition-exists="false" ipc-concordant="C07D273/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D273/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing rings having nitrogen and oxygen atoms as the only ring hetero atoms, not provided for by groups <class-ref scheme="cpc">C07D261/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D271/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D273/01" definition-exists="false" ipc-concordant="C07D273/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D273/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D273/02" definition-exists="false" ipc-concordant="C07D273/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D273/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two nitrogen atoms and only one oxygen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D273/04" definition-exists="false" ipc-concordant="C07D273/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D273/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Six-membered rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D273/06" definition-exists="false" ipc-concordant="C07D273/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D273/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seven-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D273/08" definition-exists="false" ipc-concordant="C07D273/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D273/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two nitrogen atoms and more than one oxygen atom</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C07D275/00" date-revised="2013-01-01" status="published"><classification-symbol>C07D275/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds having nitrogen and sulfur as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D275/00" definition-exists="false" ipc-concordant="C07D275/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D275/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,2-thiazole or hydrogenated 1,2-thiazole rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D275/02" definition-exists="false" ipc-concordant="C07D275/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D275/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D275/03" definition-exists="false" ipc-concordant="C07D275/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D275/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D275/04" definition-exists="false" ipc-concordant="C07D275/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D275/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D275/06" definition-exists="false" ipc-concordant="C07D275/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D275/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to the ring sulfur atom</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D277/00" definition-exists="false" ipc-concordant="C07D277/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D277/02" definition-exists="false" ipc-concordant="C07D277/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D277/04" definition-exists="false" ipc-concordant="C07D277/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D277/06" definition-exists="false" ipc-concordant="C07D277/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D277/08" definition-exists="false" ipc-concordant="C07D277/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D277/10" definition-exists="false" ipc-concordant="C07D277/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D277/12" definition-exists="false" ipc-concordant="C07D277/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D277/12</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/14" definition-exists="false" ipc-concordant="C07D277/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/16" definition-exists="false" ipc-concordant="C07D277/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/18" definition-exists="false" ipc-concordant="C07D277/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D277/20" definition-exists="false" ipc-concordant="C07D277/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D277/22" definition-exists="false" ipc-concordant="C07D277/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/24" definition-exists="false" ipc-concordant="C07D277/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/26" definition-exists="false" ipc-concordant="C07D277/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/28" definition-exists="false" ipc-concordant="C07D277/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/30" definition-exists="false" ipc-concordant="C07D277/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D277/32" definition-exists="false" ipc-concordant="C07D277/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/34" definition-exists="false" ipc-concordant="C07D277/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/36" definition-exists="false" ipc-concordant="C07D277/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/38" definition-exists="false" ipc-concordant="C07D277/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D277/40" definition-exists="false" ipc-concordant="C07D277/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Unsubstituted amino or imino radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D277/42" definition-exists="false" ipc-concordant="C07D277/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D277/44" definition-exists="false" ipc-concordant="C07D277/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acylated amino or imino radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D277/46" definition-exists="false" ipc-concordant="C07D277/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by carboxylic acids, or sulfur or nitrogen analogues thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D277/48" definition-exists="false" ipc-concordant="C07D277/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by radicals derived from carbonic acid, or sulfur or nitrogen analogues thereof, e.g. carbonylguanidines</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D277/50" definition-exists="true" ipc-concordant="C07D277/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D277/50</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Nitrogen atoms bound to hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D277/52" definition-exists="false" ipc-concordant="C07D277/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to sulfur atoms, e.g. sulfonamides</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/54" definition-exists="false" ipc-concordant="C07D277/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen and either oxygen or sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/56" definition-exists="false" ipc-concordant="C07D277/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/58" definition-exists="false" ipc-concordant="C07D277/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitro radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D277/587" definition-exists="false" ipc-concordant="C07D277/587" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-11-05" status="published"><classification-symbol>C07D277/587</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aliphatic hydrocarbon radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms, said aliphatic radicals being substituted in the alpha-position to the ring by a hetero atom, e.g. <media id="1029" file-name="cpc-sch-C07D-1029.gif" type="gif"/> with m &gt;= 0, Z being a singly or a doubly bound hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/593" definition-exists="false" ipc-concordant="C07D277/593" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/593</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Z being doubly bound oxygen or doubly bound nitrogen, which nitrogen is part of a possibly substituted oximino radical</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D277/60" definition-exists="false" ipc-concordant="C07D277/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D277/60</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D277/62" definition-exists="false" ipc-concordant="C07D277/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzothiazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D277/64" definition-exists="false" ipc-concordant="C07D277/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrocarbon or substituted hydrocarbon radicals attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/66" definition-exists="false" ipc-concordant="C07D277/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aromatic rings or ring systems directly attached in position 2</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D277/68" definition-exists="false" ipc-concordant="C07D277/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/70" definition-exists="false" ipc-concordant="C07D277/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D277/72" definition-exists="false" ipc-concordant="C07D277/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>2-Mercaptobenzothiazole</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D277/74" definition-exists="false" ipc-concordant="C07D277/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms substituted by carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D277/76" definition-exists="false" ipc-concordant="C07D277/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms attached to a second hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D277/78" definition-exists="false" ipc-concordant="C07D277/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D277/78</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>to a second sulphur atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D277/80" definition-exists="false" ipc-concordant="C07D277/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to a nitrogen atom</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D277/82" definition-exists="false" ipc-concordant="C07D277/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D277/84" definition-exists="false" ipc-concordant="C07D277/84" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D277/84</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Naphthothiazoles</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D279/00" definition-exists="false" ipc-concordant="C07D279/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D279/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing six-membered rings having one nitrogen atom and one sulfur atom as the only ring hetero atoms</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> Thiomorpholines having only hydrogen atoms attached to the ring carbon atoms are classified in group <class-ref scheme="cpc">C07D295/00</class-ref>.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D279/02" definition-exists="false" ipc-concordant="C07D279/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2-Thiazines</text></title-part><title-part><text>Hydrogenated 1,2-thiazines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D279/04" definition-exists="false" ipc-concordant="C07D279/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,3-Thiazines</text></title-part><title-part><text>Hydrogenated 1,3-thiazines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D279/06" definition-exists="false" ipc-concordant="C07D279/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D279/08" definition-exists="false" ipc-concordant="C07D279/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D279/10" definition-exists="false" ipc-concordant="C07D279/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,4-Thiazines</text></title-part><title-part><text>Hydrogenated 1,4-thiazines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D279/12" definition-exists="false" ipc-concordant="C07D279/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D279/14" definition-exists="false" ipc-concordant="C07D279/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D279/16" definition-exists="false" ipc-concordant="C07D279/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D279/18" definition-exists="false" ipc-concordant="C07D279/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b, e]-condensed with two six-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D279/20" definition-exists="false" ipc-concordant="C07D279/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrogen atoms directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D279/22" definition-exists="false" ipc-concordant="C07D279/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with carbon atoms directly attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D279/24" definition-exists="false" ipc-concordant="C07D279/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by amino radicals, attached to the ring nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D279/26" definition-exists="false" ipc-concordant="C07D279/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>without other substituents attached to the ring system</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D279/28" definition-exists="false" ipc-concordant="C07D279/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with other substituents attached to the ring system</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D279/30" definition-exists="false" ipc-concordant="C07D279/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with acyl radicals attached to the ring nitrogen atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D279/32" definition-exists="false" ipc-concordant="C07D279/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to the ring nitrogen atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D279/34" definition-exists="false" ipc-concordant="C07D279/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to the ring sulfur atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D279/36" definition-exists="false" ipc-concordant="C07D279/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D279/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b, e]-condensed, at least one with a further condensed benzene ring</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D281/00" definition-exists="false" ipc-concordant="C07D281/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D281/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings of more than six members having one nitrogen atom and one sulfur atom as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D281/02" definition-exists="false" ipc-concordant="C07D281/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D281/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seven-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D281/04" definition-exists="false" ipc-concordant="C07D281/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D281/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the hetero atoms in positions 1 and 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D281/06" definition-exists="false" ipc-concordant="C07D281/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D281/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D281/08" definition-exists="false" ipc-concordant="C07D281/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D281/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D281/10" definition-exists="false" ipc-concordant="C07D281/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D281/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D281/12" definition-exists="false" ipc-concordant="C07D281/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D281/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with two six-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D281/14" definition-exists="false" ipc-concordant="C07D281/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D281/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b, e]-condensed</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D281/16" definition-exists="false" ipc-concordant="C07D281/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D281/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b, f]-condensed</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D281/18" definition-exists="false" ipc-concordant="C07D281/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D281/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Eight-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D283/00" definition-exists="false" ipc-concordant="C07D283/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D283/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing rings having one nitrogen atom and one sulfur atom as the only ring hetero atoms, according to more than one of groups <class-ref scheme="cpc">C07D275/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D281/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D283/02" definition-exists="false" ipc-concordant="C07D283/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D283/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the hetero atoms in positions 1 and 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D285/00" definition-exists="false" ipc-concordant="C07D285/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D285/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups <class-ref scheme="cpc">C07D275/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D283/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D285/01" definition-exists="false" ipc-concordant="C07D285/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Five-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D285/02" definition-exists="false" ipc-concordant="C07D285/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Thiadiazoles</text></title-part><title-part><text>Hydrogenated thiadiazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D285/04" definition-exists="false" ipc-concordant="C07D285/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D285/06" definition-exists="false" ipc-concordant="C07D285/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,3-Thiadiazoles</text></title-part><title-part><text>Hydrogenated 1,2,3-thiadiazoles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D285/08" definition-exists="false" ipc-concordant="C07D285/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,4-Thiadiazoles</text></title-part><title-part><text>Hydrogenated 1,2,4-thiadiazoles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D285/10" definition-exists="false" ipc-concordant="C07D285/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,5-Thiadiazoles</text></title-part><title-part><text>Hydrogenated 1,2,5-thiadiazoles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D285/12" definition-exists="false" ipc-concordant="C07D285/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,3,4-Thiadiazoles</text></title-part><title-part><text>Hydrogenated 1,3,4-thiadiazoles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D285/125" definition-exists="false" ipc-concordant="C07D285/125" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen, sulfur or nitrogen atoms, directly attached to ring carbon atoms, the nitrogen atoms not forming part of a nitro radical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D285/13" definition-exists="false" ipc-concordant="C07D285/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/13</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D285/135" definition-exists="false" ipc-concordant="C07D285/135" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/135</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D285/14" definition-exists="false" ipc-concordant="C07D285/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D285/15" definition-exists="false" ipc-concordant="C07D285/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/15</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Six-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D285/16" definition-exists="false" ipc-concordant="C07D285/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Thiadiazines</text></title-part><title-part><text>Hydrogenated thiadiazines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D285/18" definition-exists="false" ipc-concordant="C07D285/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2,4-Thiadiazines</text></title-part><title-part><text>Hydrogenated 1,2,4-thiadiazines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D285/20" definition-exists="false" ipc-concordant="C07D285/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D285/22" definition-exists="false" ipc-concordant="C07D285/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D285/24" definition-exists="false" ipc-concordant="C07D285/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms directly attached to the ring sulfur atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D285/26" definition-exists="false" ipc-concordant="C07D285/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted in position 6 or 7 by sulfamoyl or substituted sulfamoyl radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D285/28" definition-exists="false" ipc-concordant="C07D285/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached in position 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D285/30" definition-exists="false" ipc-concordant="C07D285/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D285/30</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hydrocarbon radicals, substituted by hetero atoms, attached in position 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D285/32" definition-exists="false" ipc-concordant="C07D285/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 3</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D285/34" definition-exists="false" ipc-concordant="C07D285/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,3,5-Thiadiazines</text></title-part><title-part><text>Hydrogenated 1,3,5-thiadiazines</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D285/36" definition-exists="false" ipc-concordant="C07D285/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seven-membered rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D285/38" definition-exists="false" ipc-concordant="C07D285/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D285/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Eight-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D291/00" definition-exists="false" ipc-concordant="C07D291/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D291/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having nitrogen, oxygen and sulfur atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D291/02" definition-exists="false" ipc-concordant="C07D291/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D291/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D291/04" definition-exists="false" ipc-concordant="C07D291/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D291/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Five-membered rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D291/06" definition-exists="false" ipc-concordant="C07D291/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D291/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Six-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D291/08" definition-exists="false" ipc-concordant="C07D291/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D291/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D293/00" definition-exists="false" ipc-concordant="C07D293/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D293/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D293/02" definition-exists="false" ipc-concordant="C07D293/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D293/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D293/04" definition-exists="false" ipc-concordant="C07D293/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D293/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Five-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D293/06" definition-exists="false" ipc-concordant="C07D293/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D293/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selenazoles</text></title-part><title-part><text>Hydrogenated selenazoles</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D293/08" definition-exists="false" ipc-concordant="C07D293/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D293/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Six-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D293/10" definition-exists="false" ipc-concordant="C07D293/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D293/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D293/12" definition-exists="false" ipc-concordant="C07D293/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D293/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selenazoles</text></title-part><title-part><text>Hydrogenated selenazoles</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D295/00" definition-exists="false" ipc-concordant="C07D295/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D295/00</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D295/02" definition-exists="false" ipc-concordant="C07D295/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing only hydrogen and carbon atoms in addition to the ring hetero elements</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/023" definition-exists="false" ipc-concordant="C07D295/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation</text></title-part><title-part><text>Separation</text></title-part><title-part><text>Stabilisation</text></title-part><title-part><text>Use of additives</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/027" definition-exists="false" ipc-concordant="C07D295/027" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing only one hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/03" definition-exists="false" ipc-concordant="C07D295/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms directly attached to acyclic carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/033" definition-exists="false" ipc-concordant="C07D295/033" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/033</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms directly attached to carbocyclic rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/037" definition-exists="false" ipc-concordant="C07D295/037" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/037</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with quaternary ring nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D295/04" definition-exists="false" ipc-concordant="C07D295/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to ring nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/06" definition-exists="false" ipc-concordant="C07D295/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted by halogen atoms or nitro radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/067" definition-exists="false" ipc-concordant="C07D295/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms and the substituents attached to the same carbon chain, which is not interrupted by carbocyclic rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/073" definition-exists="false" ipc-concordant="C07D295/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/073</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms and the substituents separated by carbocyclic rings or by carbon chains interrupted by carbocyclic rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/08" definition-exists="false" ipc-concordant="C07D295/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted by singly bound oxygen or sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/084" definition-exists="false" ipc-concordant="C07D295/084" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/084</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D295/088" definition-exists="false" ipc-concordant="C07D295/088" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/088</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to an acyclic saturated chain</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D295/092" definition-exists="false" ipc-concordant="C07D295/092" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/092</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aromatic radicals attached to the chain</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/096" definition-exists="false" ipc-concordant="C07D295/096" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/096</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms and the oxygen or sulfur atoms separated by carbocyclic rings or by carbon chains interrupted by carbocyclic rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/10" definition-exists="true" ipc-concordant="C07D295/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D295/10</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>substituted by doubly bound oxygen or sulphur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/104" definition-exists="false" ipc-concordant="C07D295/104" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms and the doubly bound oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D295/108" definition-exists="false" ipc-concordant="C07D295/108" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/108</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to an acyclic saturated chain</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/112" definition-exists="false" ipc-concordant="C07D295/112" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/112</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms and the doubly bound oxygen or sulfur atoms separated by carbocyclic rings or by carbon chains interrupted by carbocyclic rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D295/116" definition-exists="false" ipc-concordant="C07D295/116" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/116</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the doubly bound oxygen or sulfur atoms directly attached to a carbocyclic ring</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/12" definition-exists="false" ipc-concordant="C07D295/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted by singly or doubly bound nitrogen atoms </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D295/06</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/125" definition-exists="false" ipc-concordant="C07D295/125" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms and the substituent nitrogen atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D295/13" definition-exists="false" ipc-concordant="C07D295/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/13</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to an acyclic saturated chain</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/135" definition-exists="false" ipc-concordant="C07D295/135" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/135</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms and the substituent nitrogen atoms separated by carbocyclic rings or by carbon chains interrupted by carbocyclic rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/14" definition-exists="false" ipc-concordant="C07D295/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/145" definition-exists="false" ipc-concordant="C07D295/145" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms and the carbon atoms with three bonds to hetero atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D295/15" definition-exists="false" ipc-concordant="C07D295/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/15</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to an acyclic saturated chain</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/155" definition-exists="false" ipc-concordant="C07D295/155" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/155</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the ring nitrogen atoms and the carbon atoms with three bonds to hetero atoms separated by carbocyclic rings or by carbon chains interrupted by carbocyclic rings</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D295/16" definition-exists="false" ipc-concordant="C07D295/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>acylated on ring nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/18" definition-exists="false" ipc-concordant="C07D295/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by radicals derived from carboxylic acids, or sulfur or nitrogen analogues thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/182" definition-exists="false" ipc-concordant="C07D295/182" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/182</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals derived from carboxylic acids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D295/185" definition-exists="false" ipc-concordant="C07D295/185" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from aliphatic carboxylic acids</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D295/192" definition-exists="false" ipc-concordant="C07D295/192" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/192</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from aromatic carboxylic acids</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/194" definition-exists="false" ipc-concordant="C07D295/194" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/194</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals derived from thio- or thiono carboxylic acids</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/195" definition-exists="false" ipc-concordant="C07D295/195" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/195</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals derived from nitrogen analogues of carboxylic acids</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/20" definition-exists="false" ipc-concordant="C07D295/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by radicals derived from carbonic acid, or sulfur or nitrogen analogues thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/205" definition-exists="false" ipc-concordant="C07D295/205" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals derived from carbonic acid</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/21" definition-exists="false" ipc-concordant="C07D295/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/21</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals derived from sulfur analogues of carbonic acid</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/215" definition-exists="false" ipc-concordant="C07D295/215" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/215</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals derived from nitrogen analogues of carbonic acid</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D295/22" definition-exists="false" ipc-concordant="C07D295/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached to ring nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/24" definition-exists="false" ipc-concordant="C07D295/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/26" definition-exists="false" ipc-concordant="C07D295/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D295/28" definition-exists="false" ipc-concordant="C07D295/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/30" definition-exists="false" ipc-concordant="C07D295/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>non-acylated</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D295/32" definition-exists="false" ipc-concordant="C07D295/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D295/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>acylated with carboxylic or carbonic acids, or their nitrogen or sulfur analogues</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C07D301/00" date-revised="2022-08-01" status="published"><classification-symbol>C07D301/00</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Heterocyclic compounds having oxygen atoms, with or without sulphur, selenium, or tellurium atoms, as ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D301/00" definition-exists="false" ipc-concordant="C07D301/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of oxiranes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D301/02" definition-exists="false" ipc-concordant="C07D301/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Synthesis of the oxirane ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D301/03" definition-exists="false" ipc-concordant="C07D301/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D301/04" definition-exists="false" ipc-concordant="C07D301/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with air or molecular oxygen</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D301/06" definition-exists="false" ipc-concordant="C07D301/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in the liquid phase</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D301/08" definition-exists="false" ipc-concordant="C07D301/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in the gaseous phase</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D301/10" definition-exists="false" ipc-concordant="C07D301/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with catalysts containing silver or gold</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D301/12" definition-exists="false" ipc-concordant="C07D301/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrogen peroxide or inorganic peroxides or peracids</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D301/14" definition-exists="false" ipc-concordant="C07D301/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with organic peracids, or salts, anhydrides or esters thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D301/16" definition-exists="false" ipc-concordant="C07D301/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>C07D301/16</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>formed <u>in situ</u>, e.g. from carboxylic acids and hydrogen peroxide</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D301/18" definition-exists="false" ipc-concordant="C07D301/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from polybasic carboxylic acids</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D301/19" definition-exists="false" ipc-concordant="C07D301/19" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/19</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with organic hydroperoxides</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D301/22" definition-exists="false" ipc-concordant="C07D301/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D301/22</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>by oxidation of saturated compounds with air or molecular oxygen </text><reference><text>of mixtures of unsaturated and saturated compounds <class-ref scheme="cpc">C07D301/04</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D301/24" definition-exists="false" ipc-concordant="C07D301/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D301/24</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>by splitting off HAL&#8212;Y from compounds containing the radical HAL&#8212;C&#8212;C&#8212;OY</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D301/26" definition-exists="false" ipc-concordant="C07D301/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Y being hydrogen</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D301/27" definition-exists="false" ipc-concordant="C07D301/27" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/27</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Condensation of epihalohydrins or halohydrins with compounds containing active hydrogen atoms </text><reference><text>macromolecular compounds <class-ref scheme="cpc">C08</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D301/28" definition-exists="false" ipc-concordant="C07D301/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by reaction with hydroxyl radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D301/30" definition-exists="false" ipc-concordant="C07D301/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by reaction with carboxyl radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D301/32" definition-exists="false" ipc-concordant="C07D301/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Separation</text></title-part><title-part><text>Purification</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D301/36" definition-exists="false" ipc-concordant="C07D301/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D301/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of additives, e.g. for stabilisation</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D303/00" definition-exists="false" ipc-concordant="C07D303/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D303/00</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D303/02" definition-exists="false" ipc-concordant="C07D303/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds containing oxirane rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D303/04" definition-exists="false" ipc-concordant="C07D303/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing only hydrogen and carbon atoms in addition to the ring oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D303/06" definition-exists="false" ipc-concordant="C07D303/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the oxirane rings are condensed with a carbocyclic ring system having three or more relevant rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D303/08" definition-exists="false" ipc-concordant="C07D303/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D303/10" definition-exists="true" ipc-concordant="C07D303/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D303/10</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>in which the oxirane rings are condensed with a carbocyclic ring system having three or more relevant rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D303/12" definition-exists="false" ipc-concordant="C07D303/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D303/12</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D303/14" definition-exists="false" ipc-concordant="C07D303/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by free hydroxyl radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D303/16" definition-exists="false" ipc-concordant="C07D303/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by esterified hydroxyl radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D303/17" definition-exists="false" ipc-concordant="C07D303/17" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/17</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing oxirane rings condensed with carbocyclic ring systems having three or more relevant rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D303/18" definition-exists="false" ipc-concordant="C07D303/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by etherified hydroxyl radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D303/20" definition-exists="false" ipc-concordant="C07D303/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ethers with hydroxy compounds containing no oxirane rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D303/22" definition-exists="false" ipc-concordant="C07D303/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with monohydroxy compounds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D303/23" definition-exists="false" ipc-concordant="C07D303/23" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-11-05" status="published"><classification-symbol>C07D303/23</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxiranylmethyl ethers of compounds having one hydroxy group bound to a six-membered aromatic ring, the oxiranylmethyl radical not being further substituted, i.e. <media id="1030" file-name="cpc-sch-C07D-1030.gif" type="gif"/></text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D303/24" definition-exists="false" ipc-concordant="C07D303/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with polyhydroxy compounds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D303/26" definition-exists="false" ipc-concordant="C07D303/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one or more free hydroxyl radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D303/27" definition-exists="false" ipc-concordant="C07D303/27" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/27</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having all hydroxyl radicals etherified with oxirane containing compounds</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D303/28" definition-exists="false" ipc-concordant="C07D303/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ethers with hydroxy compounds containing oxirane rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D303/30" definition-exists="false" ipc-concordant="C07D303/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D303/30</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Ethers of oxirane-containing polyhydroxy compounds in which all hydroxyl radicals are etherified with oxirane-containing hydroxy compounds</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D303/31" definition-exists="false" ipc-concordant="C07D303/31" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/31</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the oxirane rings are condensed with a carbocyclic ring system having three or more relevant rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D303/32" definition-exists="false" ipc-concordant="C07D303/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by aldehydo- or ketonic radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D303/34" definition-exists="false" ipc-concordant="C07D303/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D303/34</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hydrocarbon radicals, substituted by sulphur, selenium or tellurium atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D303/36" definition-exists="false" ipc-concordant="C07D303/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D303/36</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hydrocarbon radicals, substituted by nitrogen atoms </text><reference><text>nitro, nitroso radicals <class-ref scheme="cpc">C07D303/08</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D303/38" definition-exists="false" ipc-concordant="C07D303/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D303/38</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D303/40" definition-exists="false" ipc-concordant="C07D303/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by ester radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D303/42" definition-exists="false" ipc-concordant="C07D303/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acyclic compounds having a chain of seven or more carbon atoms, e.g. epoxidised fats</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D303/44" definition-exists="false" ipc-concordant="C07D303/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Esterified with oxirane-containing hydroxy compounds</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D303/46" definition-exists="false" ipc-concordant="C07D303/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D303/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by amide or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D303/48" definition-exists="false" ipc-concordant="C07D303/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D303/48</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D305/00" definition-exists="false" ipc-concordant="C07D305/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D305/00</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D305/02" definition-exists="false" ipc-concordant="C07D305/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D305/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D305/04" definition-exists="false" ipc-concordant="C07D305/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D305/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D305/06" definition-exists="false" ipc-concordant="C07D305/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D305/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D305/08" definition-exists="false" ipc-concordant="C07D305/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D305/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D305/10" definition-exists="false" ipc-concordant="C07D305/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D305/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one or more double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D305/12" definition-exists="false" ipc-concordant="C07D305/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D305/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Beta-lactones</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D305/14" definition-exists="false" ipc-concordant="C07D305/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D305/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D307/00" definition-exists="false" ipc-concordant="C07D307/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D307/02" definition-exists="false" ipc-concordant="C07D307/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D307/04" definition-exists="false" ipc-concordant="C07D307/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/06" definition-exists="false" ipc-concordant="C07D307/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/08" definition-exists="false" ipc-concordant="C07D307/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of tetrahydrofuran</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/10" definition-exists="false" ipc-concordant="C07D307/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/12" definition-exists="false" ipc-concordant="C07D307/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/14" definition-exists="false" ipc-concordant="C07D307/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/16" definition-exists="false" ipc-concordant="C07D307/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D307/16</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/18" definition-exists="false" ipc-concordant="C07D307/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/20" definition-exists="false" ipc-concordant="C07D307/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/22" definition-exists="false" ipc-concordant="C07D307/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/24" definition-exists="false" ipc-concordant="C07D307/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D307/26" definition-exists="false" ipc-concordant="C07D307/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/28" definition-exists="false" ipc-concordant="C07D307/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/30" definition-exists="false" ipc-concordant="C07D307/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/32" definition-exists="false" ipc-concordant="C07D307/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D307/33" definition-exists="false" ipc-concordant="C07D307/33" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/33</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in position 2, the oxygen atom being in its keto or unsubstituted enol form</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D307/34" definition-exists="false" ipc-concordant="C07D307/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or three double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/36" definition-exists="false" ipc-concordant="C07D307/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/38" definition-exists="false" ipc-concordant="C07D307/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/40" definition-exists="false" ipc-concordant="C07D307/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D307/42" definition-exists="true" ipc-concordant="C07D307/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D307/42</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Singly bound oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D307/44" definition-exists="false" ipc-concordant="C07D307/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Furfuryl alcohol</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D307/45" definition-exists="false" ipc-concordant="C07D307/45" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/45</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms acylated by a cyclopropane containing carboxylic acyl radical, e.g. chrysanthemumates</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D307/46" definition-exists="false" ipc-concordant="C07D307/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D307/48" definition-exists="false" ipc-concordant="C07D307/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Furfural</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D307/50" definition-exists="false" ipc-concordant="C07D307/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation from natural products</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/52" definition-exists="false" ipc-concordant="C07D307/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/54" definition-exists="false" ipc-concordant="C07D307/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D307/54</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/56" definition-exists="false" ipc-concordant="C07D307/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/58" definition-exists="false" ipc-concordant="C07D307/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>One oxygen atom, e.g. butenolide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/60" definition-exists="false" ipc-concordant="C07D307/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Two oxygen atoms, e.g. succinic anhydride</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/62" definition-exists="false" ipc-concordant="C07D307/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Three oxygen atoms, e.g. ascorbic acid</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/64" definition-exists="false" ipc-concordant="C07D307/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/66" definition-exists="true" ipc-concordant="C07D307/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D307/66</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/68" definition-exists="false" ipc-concordant="C07D307/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/70" definition-exists="false" ipc-concordant="C07D307/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitro radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D307/71" definition-exists="false" ipc-concordant="C07D307/71" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/71</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 5</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D307/72" definition-exists="false" ipc-concordant="C07D307/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by nitrogen-containing radicals, attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D307/73" definition-exists="false" ipc-concordant="C07D307/73" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/73</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by amino or imino, or substituted amino or imino radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D307/74" definition-exists="false" ipc-concordant="C07D307/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by hydrazino or hydrazono or such substituted radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D307/75" definition-exists="false" ipc-concordant="C07D307/75" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/75</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having carboxylic acyl radicals or their thio or nitrogen analogues directly attached to the hydrazino or hydrazono radical, e.g. hydrazides</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="15" additional-only="false" sort-key="C07D307/76" definition-exists="false" ipc-concordant="C07D307/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>C07D307/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having carbonic acyl radicals or their thio or nitrogen analogues directly attached to the hydrazino or hydrazono radical, e.g. semicarbazides</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D307/77" definition-exists="false" ipc-concordant="C07D307/77" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/77</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>ortho- or peri-condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D307/78" definition-exists="false" ipc-concordant="C07D307/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzo [b] furans</text></title-part><title-part><text>Hydrogenated benzo [b] furans</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/79" definition-exists="false" ipc-concordant="C07D307/79" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D307/79</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/80" definition-exists="false" ipc-concordant="C07D307/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/81" definition-exists="false" ipc-concordant="C07D307/81" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/81</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/82" definition-exists="false" ipc-concordant="C07D307/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/83" definition-exists="false" ipc-concordant="C07D307/83" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/83</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/84" definition-exists="false" ipc-concordant="C07D307/84" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/84</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D307/85" definition-exists="false" ipc-concordant="C07D307/85" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/85</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 2</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/86" definition-exists="false" ipc-concordant="C07D307/86" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an oxygen atom directly attached in position 7</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D307/87" definition-exists="false" ipc-concordant="C07D307/87" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/87</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzo [c] furans</text></title-part><title-part><text>Hydrogenated benzo [c] furans</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/88" definition-exists="false" ipc-concordant="C07D307/88" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/88</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with one oxygen atom directly attached in position 1 or 3</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/885" definition-exists="false" ipc-concordant="C07D307/885" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/885</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>3,3-Diphenylphthalides</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/89" definition-exists="false" ipc-concordant="C07D307/89" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/89</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two oxygen atoms directly attached in positions 1 and 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/90" definition-exists="false" ipc-concordant="C07D307/90" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>C07D307/90</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>with an oxygen atom in position 1 and a nitrogen atom in position 3, or <u>vice versa</u></text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D307/91" definition-exists="false" ipc-concordant="C07D307/91" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/91</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dibenzofurans</text></title-part><title-part><text>Hydrogenated dibenzofurans</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D307/92" definition-exists="false" ipc-concordant="C07D307/92" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/92</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Naphthofurans</text></title-part><title-part><text>Hydrogenated naphthofurans</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D307/93" definition-exists="false" ipc-concordant="C07D307/93" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/93</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with a ring other than six-membered</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D307/935" definition-exists="false" ipc-concordant="C07D307/935" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/935</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Not further condensed cyclopenta [b] furans or hydrogenated cyclopenta [b] furans</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D307/937" definition-exists="false" ipc-concordant="C07D307/937" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/937</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon or substituted hydrocarbon radicals directly attached in position 2, e.g. prostacyclins</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D307/94" definition-exists="false" ipc-concordant="C07D307/94" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D307/94</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>spiro-condensed with carbocyclic rings or ring systems, e.g. griseofulvins</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D309/00" definition-exists="false" ipc-concordant="C07D309/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D309/02" definition-exists="false" ipc-concordant="C07D309/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having no double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D309/04" definition-exists="false" ipc-concordant="C07D309/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D309/06" definition-exists="false" ipc-concordant="C07D309/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D309/08" definition-exists="false" ipc-concordant="C07D309/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D309/10" definition-exists="false" ipc-concordant="C07D309/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D309/12" definition-exists="false" ipc-concordant="C07D309/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D309/12</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>only hydrogen atoms and one oxygen atom directly attached to ring carbon atoms, e.g. tetrahydropyranyl ethers</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D309/14" definition-exists="true" ipc-concordant="C07D309/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D309/14</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D309/16" definition-exists="false" ipc-concordant="C07D309/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having one double bond between ring members or between a ring member and a non-ring member</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D309/18" definition-exists="false" ipc-concordant="C07D309/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing only hydrogen and carbon atoms in addition to the ring hetero atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D309/20" definition-exists="false" ipc-concordant="C07D309/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrogen atoms and substituted hydrocarbon radicals directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D309/22" definition-exists="false" ipc-concordant="C07D309/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D309/24" definition-exists="false" ipc-concordant="C07D309/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methylol radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D309/26" definition-exists="false" ipc-concordant="C07D309/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carboxaldehyde radicals</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D309/28" definition-exists="false" ipc-concordant="C07D309/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D309/30" definition-exists="false" ipc-concordant="C07D309/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms, e.g. delta-lactones</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D309/32" definition-exists="false" ipc-concordant="C07D309/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two double bonds between ring members or between ring members and non-ring members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D309/34" definition-exists="false" ipc-concordant="C07D309/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having three or more double bonds between ring members or between ring members and non-ring members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D309/36" definition-exists="false" ipc-concordant="C07D309/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D309/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D309/38" definition-exists="false" ipc-concordant="C07D309/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D309/38</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>one oxygen atom in position 2 or 4, e.g. pyrones</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D309/40" definition-exists="false" ipc-concordant="C07D309/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D309/40</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Oxygen atoms attached in positions 3 and 4, e.g. maltol</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D311/00" definition-exists="false" ipc-concordant="C07D311/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D311/02" definition-exists="false" ipc-concordant="C07D311/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>ortho- or peri-condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D311/04" definition-exists="false" ipc-concordant="C07D311/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzo[b]pyrans, not hydrogenated in the carbocyclic ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D311/06" definition-exists="false" ipc-concordant="C07D311/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen or sulfur atoms directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/08" definition-exists="false" ipc-concordant="C07D311/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not hydrogenated in the hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/10" definition-exists="false" ipc-concordant="C07D311/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>unsubstituted</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/12" definition-exists="false" ipc-concordant="C07D311/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted in position 3 and unsubstituted in position 7</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/14" definition-exists="false" ipc-concordant="C07D311/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted in position 6 and unsubstituted in position 7</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/16" definition-exists="false" ipc-concordant="C07D311/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted in position 7</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/18" definition-exists="true" ipc-concordant="C07D311/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D311/18</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>substituted otherwise than in position 3 or 7</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/20" definition-exists="false" ipc-concordant="C07D311/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>hydrogenated in the hetero ring</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D311/22" definition-exists="false" ipc-concordant="C07D311/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen or sulfur atoms directly attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/24" definition-exists="false" ipc-concordant="C07D311/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/26" definition-exists="false" ipc-concordant="C07D311/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aromatic rings attached in position 2 or 3</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/28" definition-exists="false" ipc-concordant="C07D311/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aromatic rings attached in position 2 only</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D311/30" definition-exists="false" ipc-concordant="C07D311/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not hydrogenated in the hetero ring, e.g. flavones</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D311/32" definition-exists="false" ipc-concordant="C07D311/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>2,3-Dihydro derivatives, e.g. flavanones</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/34" definition-exists="false" ipc-concordant="C07D311/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aromatic rings attached in position 3 only</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D311/36" definition-exists="false" ipc-concordant="C07D311/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not hydrogenated in the hetero ring, e.g. isoflavones</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D311/38" definition-exists="false" ipc-concordant="C07D311/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D311/38</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>2,3-Dihydro derivatives, e.g. isoflavanones</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/40" definition-exists="false" ipc-concordant="C07D311/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Separation, e.g. from natural material</text></title-part><title-part><text>Purification</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D311/42" definition-exists="false" ipc-concordant="C07D311/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D311/42</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>with oxygen or sulfur atoms in positions 2 and 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/44" definition-exists="false" ipc-concordant="C07D311/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with one hydrogen atom in position 3</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/46" definition-exists="false" ipc-concordant="C07D311/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>unsubstituted in the carbocyclic ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D311/48" definition-exists="false" ipc-concordant="C07D311/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two such benzopyran radicals linked together by a carbon chain</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D311/50" definition-exists="false" ipc-concordant="C07D311/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with elements other than carbon and hydrogen in position 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D311/52" definition-exists="false" ipc-concordant="C07D311/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Enol-esters or -ethers, or sulfur analogues thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/54" definition-exists="false" ipc-concordant="C07D311/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted in the carbocyclic ring</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/56" definition-exists="false" ipc-concordant="C07D311/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>without hydrogen atoms in position 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D311/58" definition-exists="false" ipc-concordant="C07D311/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D311/58</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>other than with oxygen or sulphur atoms in position 2 or 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/60" definition-exists="false" ipc-concordant="C07D311/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aryl radicals attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/62" definition-exists="false" ipc-concordant="C07D311/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>C07D311/62</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>with oxygen atoms directly attached in position 3, e.g. anthocyanidins</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/64" definition-exists="false" ipc-concordant="C07D311/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms directly attached in position 8</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/66" definition-exists="false" ipc-concordant="C07D311/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/68" definition-exists="false" ipc-concordant="C07D311/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with nitrogen atoms directly attached in position 4</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/70" definition-exists="false" ipc-concordant="C07D311/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/72" definition-exists="false" ipc-concordant="C07D311/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D311/72</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D311/74" definition-exists="false" ipc-concordant="C07D311/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzo[b]pyrans, hydrogenated in the carbocyclic ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D311/76" definition-exists="false" ipc-concordant="C07D311/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzo[c]pyrans</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D311/78" definition-exists="false" ipc-concordant="C07D311/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ring systems having three or more relevant rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D311/80" definition-exists="false" ipc-concordant="C07D311/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dibenzopyrans</text></title-part><title-part><text>Hydrogenated dibenzopyrans</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D311/82" definition-exists="false" ipc-concordant="C07D311/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Xanthenes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/84" definition-exists="false" ipc-concordant="C07D311/84" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/84</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 9</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D311/86" definition-exists="false" ipc-concordant="C07D311/86" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms, e.g. xanthones</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D311/88" definition-exists="false" ipc-concordant="C07D311/88" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/88</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D311/90" definition-exists="false" ipc-concordant="C07D311/90" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D311/90</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hydrocarbon radicals, substituted by amino radicals, directly attached in position 9</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D311/92" definition-exists="false" ipc-concordant="C07D311/92" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/92</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Naphthopyrans</text></title-part><title-part><text>Hydrogenated naphthopyrans</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D311/94" definition-exists="false" ipc-concordant="C07D311/94" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D311/94</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>condensed with rings other than six-membered or with ring systems containing such rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D311/96" definition-exists="false" ipc-concordant="C07D311/96" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D311/96</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>spiro-condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D313/00" definition-exists="false" ipc-concordant="C07D313/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings of more than six members having one oxygen atom as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D313/02" definition-exists="false" ipc-concordant="C07D313/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seven-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D313/04" definition-exists="false" ipc-concordant="C07D313/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D313/06" definition-exists="false" ipc-concordant="C07D313/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D313/08" definition-exists="false" ipc-concordant="C07D313/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D313/10" definition-exists="false" ipc-concordant="C07D313/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with two six-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D313/12" definition-exists="false" ipc-concordant="C07D313/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b,e]-condensed</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D313/14" definition-exists="false" ipc-concordant="C07D313/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b,f]-condensed</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D313/16" definition-exists="false" ipc-concordant="C07D313/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Eight-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D313/18" definition-exists="false" ipc-concordant="C07D313/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D313/20" definition-exists="false" ipc-concordant="C07D313/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D313/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D315/00" definition-exists="false" ipc-concordant="C07D315/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D315/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups <class-ref scheme="cpc">C07D303/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D313/00</class-ref></text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D317/00" definition-exists="false" ipc-concordant="C07D317/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D317/02" definition-exists="false" ipc-concordant="C07D317/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the hetero atoms in positions 1 and 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D317/04" definition-exists="false" ipc-concordant="C07D317/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D317/06" definition-exists="false" ipc-concordant="C07D317/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D317/08" definition-exists="false" ipc-concordant="C07D317/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the hetero atoms in positions 1 and 3</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D317/10" definition-exists="false" ipc-concordant="C07D317/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D317/12" definition-exists="false" ipc-concordant="C07D317/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D317/14" definition-exists="false" ipc-concordant="C07D317/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituted hydrocarbon radicals attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D317/16" definition-exists="false" ipc-concordant="C07D317/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by halogen atoms or nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D317/18" definition-exists="false" ipc-concordant="C07D317/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by singly bound oxygen or sulfur atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D317/20" definition-exists="false" ipc-concordant="C07D317/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Free hydroxyl or mercaptan</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D317/22" definition-exists="false" ipc-concordant="C07D317/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>etherified</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D317/24" definition-exists="false" ipc-concordant="C07D317/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>esterified</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D317/26" definition-exists="false" ipc-concordant="C07D317/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by doubly bound oxygen or sulfur atoms or by two such atoms singly bound to the same carbon atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D317/28" definition-exists="false" ipc-concordant="C07D317/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D317/28</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Radicals substituted by nitrogen atoms </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D317/16</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D317/30" definition-exists="false" ipc-concordant="C07D317/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D317/30</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D317/32" definition-exists="false" ipc-concordant="C07D317/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D317/34" definition-exists="false" ipc-concordant="C07D317/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D317/36" definition-exists="false" ipc-concordant="C07D317/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkylene carbonates</text></title-part><title-part><text>Substituted alkylene carbonates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D317/38" definition-exists="false" ipc-concordant="C07D317/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ethylene carbonate</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D317/40" definition-exists="false" ipc-concordant="C07D317/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Vinylene carbonate</text></title-part><title-part><text>Substituted vinylene carbonates</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D317/42" definition-exists="false" ipc-concordant="C07D317/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms or nitro radicals</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D317/44" definition-exists="false" ipc-concordant="C07D317/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>ortho- or peri-condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D317/46" definition-exists="false" ipc-concordant="C07D317/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D317/48" definition-exists="false" ipc-concordant="C07D317/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D317/48</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D317/50" definition-exists="false" ipc-concordant="C07D317/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to atoms of the carbocyclic ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D317/52" definition-exists="false" ipc-concordant="C07D317/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by halogen atoms or nitro radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D317/54" definition-exists="false" ipc-concordant="C07D317/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D317/56" definition-exists="false" ipc-concordant="C07D317/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D317/58" definition-exists="false" ipc-concordant="C07D317/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D317/58</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Radicals substituted by nitrogen atoms </text><reference><text>nitro radicals <class-ref scheme="cpc">C07D317/52</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D317/60" definition-exists="false" ipc-concordant="C07D317/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D317/62" definition-exists="false" ipc-concordant="C07D317/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to atoms of the carbocyclic ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D317/64" definition-exists="false" ipc-concordant="C07D317/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D317/66" definition-exists="false" ipc-concordant="C07D317/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D317/68" definition-exists="false" ipc-concordant="C07D317/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D317/70" definition-exists="false" ipc-concordant="C07D317/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with ring systems containing two or more relevant rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D317/72" definition-exists="false" ipc-concordant="C07D317/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D317/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>spiro-condensed with carbocyclic rings</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D319/00" definition-exists="false" ipc-concordant="C07D319/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D319/02" definition-exists="false" ipc-concordant="C07D319/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,2-Dioxanes</text></title-part><title-part><text>Hydrogenated 1,2-dioxanes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D319/04" definition-exists="false" ipc-concordant="C07D319/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,3-Dioxanes</text></title-part><title-part><text>Hydrogenated 1,3-dioxanes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D319/06" definition-exists="false" ipc-concordant="C07D319/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D319/08" definition-exists="false" ipc-concordant="C07D319/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D319/10" definition-exists="false" ipc-concordant="C07D319/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,4-Dioxanes</text></title-part><title-part><text>Hydrogenated 1,4-dioxanes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D319/12" definition-exists="false" ipc-concordant="C07D319/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D319/14" definition-exists="false" ipc-concordant="C07D319/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D319/16" definition-exists="false" ipc-concordant="C07D319/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D319/18" definition-exists="false" ipc-concordant="C07D319/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ethylenedioxybenzenes, not substituted on the hetero ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D319/20" definition-exists="false" ipc-concordant="C07D319/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with substituents attached to the hetero ring</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D319/22" definition-exists="false" ipc-concordant="C07D319/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one naphthalene or hydrogenated naphthalene ring system</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D319/24" definition-exists="false" ipc-concordant="C07D319/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D319/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b,e]-condensed with two six-membered rings</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D321/00" definition-exists="false" ipc-concordant="C07D321/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D321/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing rings having two oxygen atoms as the only ring hetero atoms, not provided for by groups <class-ref scheme="cpc">C07D317/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D319/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D321/02" definition-exists="false" ipc-concordant="C07D321/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D321/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seven-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D321/04" definition-exists="false" ipc-concordant="C07D321/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D321/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D321/06" definition-exists="false" ipc-concordant="C07D321/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D321/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,3-Dioxepines</text></title-part><title-part><text>Hydrogenated 1,3-dioxepines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D321/08" definition-exists="false" ipc-concordant="C07D321/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D321/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>1,4-Dioxepines</text></title-part><title-part><text>Hydrogenated 1,4-dioxepines</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D321/10" definition-exists="false" ipc-concordant="C07D321/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D321/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D321/12" definition-exists="false" ipc-concordant="C07D321/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D321/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Eight-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D323/00" definition-exists="false" ipc-concordant="C07D323/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D323/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D323/02" definition-exists="false" ipc-concordant="C07D323/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D323/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Five-membered rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D323/04" definition-exists="false" ipc-concordant="C07D323/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D323/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Six-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D323/06" definition-exists="false" ipc-concordant="C07D323/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D323/06</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Trioxane</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D325/00" definition-exists="false" ipc-concordant="C07D325/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D325/00</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Heterocyclic compounds containing rings having oxygen as the only ring hetero atom according to more than one of groups <class-ref scheme="cpc">C07D303/00</class-ref> - <class-ref scheme="cpc">C07D323/00</class-ref></text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D327/00" definition-exists="false" ipc-concordant="C07D327/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D327/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having oxygen and sulfur atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D327/02" definition-exists="false" ipc-concordant="C07D327/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D327/02</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>one oxygen atom and one sulfur atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D327/04" definition-exists="false" ipc-concordant="C07D327/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D327/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Five-membered rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D327/06" definition-exists="false" ipc-concordant="C07D327/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D327/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Six-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D327/08" definition-exists="false" ipc-concordant="C07D327/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D327/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b,e]-condensed with two six-membered carbocyclic rings</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D327/10" definition-exists="false" ipc-concordant="C07D327/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D327/10</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>two oxygen atoms and one sulfur atom, e.g. cyclic sulfates</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D329/00" definition-exists="false" ipc-concordant="C07D329/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D329/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having oxygen and selenium or oxygen and tellurium atoms as the only ring hetero atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C07D331/00" date-revised="2013-01-01" status="published"><classification-symbol>C07D331/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds having sulfur, selenium or tellurium as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D331/00" definition-exists="false" ipc-concordant="C07D331/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D331/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings of less than five members, having one sulfur atom as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D331/02" definition-exists="false" ipc-concordant="C07D331/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D331/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Three-membered rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D331/04" definition-exists="false" ipc-concordant="C07D331/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D331/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Four-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D333/00" definition-exists="false" ipc-concordant="C07D333/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D333/02" definition-exists="false" ipc-concordant="C07D333/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D333/04" definition-exists="false" ipc-concordant="C07D333/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D333/04</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>not substituted on the ring sulphur atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D333/06" definition-exists="false" ipc-concordant="C07D333/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/08" definition-exists="false" ipc-concordant="C07D333/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydrogen atoms or radicals containing only hydrogen and carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D333/10" definition-exists="false" ipc-concordant="C07D333/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Thiophene</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/12" definition-exists="false" ipc-concordant="C07D333/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by halogen atoms or nitro or nitroso radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/14" definition-exists="false" ipc-concordant="C07D333/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by singly bound hetero atoms other than halogen</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D333/16" definition-exists="false" ipc-concordant="C07D333/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D333/18" definition-exists="false" ipc-concordant="C07D333/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D333/20" definition-exists="false" ipc-concordant="C07D333/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by nitrogen atoms </text><reference><text>nitro, nitroso radicals <class-ref scheme="cpc">C07D333/12</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/22" definition-exists="false" ipc-concordant="C07D333/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by doubly bound hetero atoms, or by two hetero atoms other than halogen singly bound to the same carbon atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/24" definition-exists="false" ipc-concordant="C07D333/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D333/26" definition-exists="false" ipc-concordant="C07D333/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/28" definition-exists="false" ipc-concordant="C07D333/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/30" definition-exists="false" ipc-concordant="C07D333/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hetero atoms other than halogen</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D333/32" definition-exists="false" ipc-concordant="C07D333/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D333/34" definition-exists="false" ipc-concordant="C07D333/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D333/36" definition-exists="true" ipc-concordant="C07D333/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D333/36</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/38" definition-exists="false" ipc-concordant="C07D333/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D333/38</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D333/40" definition-exists="false" ipc-concordant="C07D333/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D333/40</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Thiophene-2-carboxylic acid</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/42" definition-exists="false" ipc-concordant="C07D333/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with nitro or nitroso radicals directly attached to ring carbon atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D333/44" definition-exists="false" ipc-concordant="C07D333/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 5</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D333/46" definition-exists="false" ipc-concordant="C07D333/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted on the ring sulfur atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D333/48" definition-exists="false" ipc-concordant="C07D333/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by oxygen atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D333/50" definition-exists="false" ipc-concordant="C07D333/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D333/52" definition-exists="false" ipc-concordant="C07D333/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzo[b]thiophenes</text></title-part><title-part><text>Hydrogenated benzo[b]thiophenes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D333/54" definition-exists="false" ipc-concordant="C07D333/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/56" definition-exists="false" ipc-concordant="C07D333/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/58" definition-exists="false" ipc-concordant="C07D333/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/60" definition-exists="false" ipc-concordant="C07D333/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D333/62" definition-exists="false" ipc-concordant="C07D333/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/64" definition-exists="false" ipc-concordant="C07D333/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/66" definition-exists="false" ipc-concordant="C07D333/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms not forming part of a nitro radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D333/68" definition-exists="false" ipc-concordant="C07D333/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D333/70" definition-exists="false" ipc-concordant="C07D333/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 2</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D333/72" definition-exists="false" ipc-concordant="C07D333/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzo[c]thiophenes</text></title-part><title-part><text>Hydrogenated benzo[c]thiophenes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D333/74" definition-exists="false" ipc-concordant="C07D333/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Naphthothiophenes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D333/76" definition-exists="false" ipc-concordant="C07D333/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dibenzothiophenes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D333/78" definition-exists="false" ipc-concordant="C07D333/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with rings other than six-membered or with ring systems containing such rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D333/80" definition-exists="false" ipc-concordant="C07D333/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D333/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seven-membered rings</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D335/00" definition-exists="false" ipc-concordant="C07D335/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing six-membered rings having one sulfur atom as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D335/02" definition-exists="false" ipc-concordant="C07D335/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D335/04" definition-exists="false" ipc-concordant="C07D335/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D335/06" definition-exists="false" ipc-concordant="C07D335/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benzothiopyrans</text></title-part><title-part><text>Hydrogenated benzothiopyrans</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D335/08" definition-exists="false" ipc-concordant="C07D335/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Naphthothiopyrans</text></title-part><title-part><text>Hydrogenated naphthothiopyrans</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D335/10" definition-exists="false" ipc-concordant="C07D335/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dibenzothiopyrans</text></title-part><title-part><text>Hydrogenated dibenzothiopyrans</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D335/12" definition-exists="false" ipc-concordant="C07D335/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Thioxanthenes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D335/14" definition-exists="false" ipc-concordant="C07D335/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 9</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D335/16" definition-exists="false" ipc-concordant="C07D335/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms, e.g. thioxanthones</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D335/18" definition-exists="false" ipc-concordant="C07D335/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D335/20" definition-exists="false" ipc-concordant="C07D335/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D335/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by amino radicals, directly attached in position 9</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D337/00" definition-exists="false" ipc-concordant="C07D337/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D337/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings of more than six members having one sulfur atom as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D337/02" definition-exists="false" ipc-concordant="C07D337/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D337/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seven-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D337/04" definition-exists="false" ipc-concordant="C07D337/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D337/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>not condensed with other rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D337/06" definition-exists="false" ipc-concordant="C07D337/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D337/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D337/08" definition-exists="false" ipc-concordant="C07D337/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D337/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with one six-membered ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D337/10" definition-exists="false" ipc-concordant="C07D337/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D337/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>condensed with two six-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D337/12" definition-exists="false" ipc-concordant="C07D337/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D337/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b,e]-condensed</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D337/14" definition-exists="false" ipc-concordant="C07D337/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D337/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>[b,f]-condensed</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D337/16" definition-exists="false" ipc-concordant="C07D337/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D337/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Eight-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D339/00" definition-exists="false" ipc-concordant="C07D339/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D339/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having two sulfur atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D339/02" definition-exists="false" ipc-concordant="C07D339/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D339/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Five-membered rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D339/04" definition-exists="false" ipc-concordant="C07D339/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D339/04</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>having the hetero atoms in positions 1 and 2, e.g. lipoic acid</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D339/06" definition-exists="false" ipc-concordant="C07D339/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D339/06</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>having the hetero atoms in positions 1 and 3, e.g. cyclic dithiocarbonates</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D339/08" definition-exists="false" ipc-concordant="C07D339/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D339/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Six-membered rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D341/00" definition-exists="false" ipc-concordant="C07D341/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D341/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having three or more sulfur atoms as the only ring hetero atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D343/00" definition-exists="false" ipc-concordant="C07D343/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D343/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having sulfur and selenium or sulfur and tellurium atoms as the only ring hetero atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D345/00" definition-exists="false" ipc-concordant="C07D345/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D345/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having selenium or tellurium atoms as the only ring hetero atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D347/00" definition-exists="false" ipc-concordant="C07D347/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D347/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing rings having halogen atoms as ring hetero atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C07D401/00" date-revised="2022-08-01" status="published"><classification-symbol>C07D401/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing two or more hetero rings</text></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph>Groups <class-ref scheme="cpc">C07D401/00</class-ref> - <class-ref scheme="cpc">C07D421/00</class-ref> cover compounds containing two or more relevant hetero rings at least two of which are covered by different main groups of groups <class-ref scheme="cpc">C07D203/00</class-ref> - <class-ref scheme="cpc">C07D347/00</class-ref>, neither condensed among themselves nor condensed with a common carbocyclic ring or ring system.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D401/00" definition-exists="false" ipc-concordant="C07D401/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D401/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D401/02" definition-exists="false" ipc-concordant="C07D401/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D401/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D401/04" definition-exists="false" ipc-concordant="C07D401/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D401/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>directly linked by a ring-member-to-ring-member bond</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D401/06" definition-exists="false" ipc-concordant="C07D401/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D401/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing only aliphatic carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D401/08" definition-exists="false" ipc-concordant="C07D401/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D401/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing alicyclic rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D401/10" definition-exists="false" ipc-concordant="C07D401/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D401/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing aromatic rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D401/12" definition-exists="false" ipc-concordant="C07D401/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D401/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a chain containing hetero atoms as chain links</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D401/14" definition-exists="false" ipc-concordant="C07D401/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D401/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing three or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D403/00" definition-exists="false" ipc-concordant="C07D403/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D403/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group <class-ref scheme="cpc">C07D401/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D403/02" definition-exists="false" ipc-concordant="C07D403/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D403/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D403/04" definition-exists="false" ipc-concordant="C07D403/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D403/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>directly linked by a ring-member-to-ring-member bond</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D403/06" definition-exists="false" ipc-concordant="C07D403/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D403/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing only aliphatic carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D403/08" definition-exists="false" ipc-concordant="C07D403/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D403/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing alicyclic rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D403/10" definition-exists="false" ipc-concordant="C07D403/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D403/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing aromatic rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D403/12" definition-exists="false" ipc-concordant="C07D403/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D403/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a chain containing hetero atoms as chain links</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D403/14" definition-exists="false" ipc-concordant="C07D403/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D403/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing three or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D405/00" definition-exists="false" ipc-concordant="C07D405/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D405/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D405/02" definition-exists="false" ipc-concordant="C07D405/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D405/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing two hetero rings</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D419/06" definition-exists="false" ipc-concordant="C07D419/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D419/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing only aliphatic carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D419/08" definition-exists="false" ipc-concordant="C07D419/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D419/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing alicyclic rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D419/10" definition-exists="false" ipc-concordant="C07D419/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D419/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing aromatic rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D419/12" definition-exists="false" ipc-concordant="C07D419/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D419/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a chain containing hetero atoms as chain links</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D419/14" definition-exists="false" ipc-concordant="C07D419/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D419/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing three or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D421/00" definition-exists="false" ipc-concordant="C07D421/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D421/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing two or more hetero rings, at least one ring having selenium, tellurium, or halogen atoms as ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D421/02" definition-exists="false" ipc-concordant="C07D421/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D421/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D421/04" definition-exists="false" ipc-concordant="C07D421/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D421/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>directly linked by a ring-member-to-ring-member bond</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D421/06" definition-exists="false" ipc-concordant="C07D421/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D421/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing only aliphatic carbon atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D421/08" definition-exists="false" ipc-concordant="C07D421/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D421/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing alicyclic rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D421/10" definition-exists="false" ipc-concordant="C07D421/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D421/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a carbon chain containing aromatic rings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D421/12" definition-exists="false" ipc-concordant="C07D421/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D421/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>linked by a chain containing hetero atoms as chain links</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D421/14" definition-exists="false" ipc-concordant="C07D421/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D421/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing three or more hetero rings</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C07D451/00" date-revised="2022-08-01" status="published"><classification-symbol>C07D451/00</classification-symbol><class-title date-revised="2015-11-01"><title-part><text>Heterocyclic compounds containing condensed hetero ring systems</text></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph>Groups <class-ref scheme="cpc">C07D451/00</class-ref> - <class-ref scheme="cpc">C07D517/00</class-ref> cover compounds containing one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system, with or without other non-condensed hetero rings. </note-paragraph><note-paragraph>For the purpose of classification in groups <class-ref scheme="cpc">C07D451/00</class-ref> - <class-ref scheme="cpc">C07D519/00</class-ref>, the degree of hydrogenation of the ring system is not taken into consideration. </note-paragraph><note-paragraph>For the purpose of classification in groups <class-ref scheme="cpc">C07D451/00</class-ref> - <class-ref scheme="cpc">C07D463/00</class-ref>, <class-ref scheme="cpc">C07D473/00</class-ref> - <class-ref scheme="cpc">C07D477/00</class-ref>, <class-ref scheme="cpc">C07D489/00</class-ref>, <class-ref scheme="cpc">C07D499/00</class-ref> - <class-ref scheme="cpc">C07D507/00</class-ref>, the wording of the groups has to be understood, in the absence of an indication to the contrary, as including ring systems further condensed with carbocyclic rings or ring systems, but excluding ring systems further condensed with other hetero rings, either directly or through a common carbocyclic ring system, e.g. sparteine is classified in group <class-ref scheme="cpc">C07D471/22</class-ref>, not in group <class-ref scheme="cpc">C07D455/02</class-ref>. </note-paragraph><note-paragraph>In groups <class-ref scheme="cpc">C07D471/00</class-ref>, <class-ref scheme="cpc">C07D487/00</class-ref>, <class-ref scheme="cpc">C07D491/00</class-ref> - <class-ref scheme="cpc">C07D498/00</class-ref> or <class-ref scheme="cpc">C07D513/00</class-ref> - <class-ref scheme="cpc">C07D517/00</class-ref>, the subdivision is based on the number of relevant hetero rings.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D451/00" definition-exists="false" ipc-concordant="C07D451/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D451/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0&lt;2,4&gt;] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine</text></title-part><title-part><text>Cyclic acetals thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D451/02" definition-exists="false" ipc-concordant="C07D451/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D451/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing not further condensed 8-azabicyclo [3.2.1] octane or 3-oxa-9-azatricyclo [3.3.1.0&lt;2,4&gt;] nonane ring systems, e.g. tropane</text></title-part><title-part><text>Cyclic acetals thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D451/04" definition-exists="false" ipc-concordant="C07D451/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D451/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached in position 3 of the 8-azabicyclo [3.2.1] octane or in position 7 of the 3-oxa-9-azatricyclo [3.3.1.0&lt;2,4&gt;] nonane ring system</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D451/06" definition-exists="false" ipc-concordant="C07D451/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D451/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D451/08" definition-exists="false" ipc-concordant="C07D451/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D451/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Diarylmethoxy radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D451/10" definition-exists="false" ipc-concordant="C07D451/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D451/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>acylated by aliphatic or araliphatic carboxylic acids, e.g. atropine, scopolamine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D451/12" definition-exists="false" ipc-concordant="C07D451/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D451/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>acylated by aromatic or heteroaromatic carboxylic acids, e.g. cocaine</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D451/14" definition-exists="false" ipc-concordant="C07D451/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D451/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing 9-azabicyclo [3.3.1] nonane ring systems, e.g. granatane, 2-aza-adamantane</text></title-part><title-part><text>Cyclic acetals thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D453/00" definition-exists="false" ipc-concordant="C07D453/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D453/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing quinuclidine or iso-quinuclidine ring systems, e.g. quinine alkaloids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D453/02" definition-exists="false" ipc-concordant="C07D453/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D453/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing not further condensed quinuclidine ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D453/04" definition-exists="false" ipc-concordant="C07D453/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D453/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a quinolyl-4, a substituted quinolyl-4 or a alkylenedioxy-quinolyl-4 radical linked through only one carbon atom, attached in position 2, e.g. quinine</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D453/06" definition-exists="false" ipc-concordant="C07D453/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D453/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing isoquinuclidine ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D455/00" definition-exists="false" ipc-concordant="C07D455/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D455/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine</text></title-part><title-part><text>Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D455/02" definition-exists="false" ipc-concordant="C07D455/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D455/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing not further condensed quinolizine ring systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D455/03" definition-exists="false" ipc-concordant="C07D455/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>C07D455/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberine</text></title-part><title-part><text>Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D455/04" definition-exists="false" ipc-concordant="C07D455/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D455/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D455/06" definition-exists="false" ipc-concordant="C07D455/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D455/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing benzo [a] quinolizine ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D455/08" definition-exists="false" ipc-concordant="C07D455/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D455/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having an isoquinolyl-1, a substituted isoquinolyl-1 or an alkylenedioxyisoquinolyl-1 radical linked through only one carbon atom, attached in position 2, e.g. emetine</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D457/00" definition-exists="false" ipc-concordant="C07D457/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D457/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing indolo [4, 3-f, g] quinoline ring systems, e.g. derivatives of ergoline, of the formula: <media id="988" file-name="cpc-sch-C07D-0988.gif" type="gif"/> , e.g. lysergic acid </text><reference><text>compounds of the cyclic peptide type derived from ergotamane <class-ref scheme="cpc">C07D519/02</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D457/02" definition-exists="false" ipc-concordant="C07D457/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D457/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon or substituted hydrocarbon radicals, attached in position 8</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D457/04" definition-exists="false" ipc-concordant="C07D457/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D457/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 8</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D457/06" definition-exists="false" ipc-concordant="C07D457/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D457/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lysergic acid amides</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D457/08" definition-exists="false" ipc-concordant="C07D457/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D457/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the amide nitrogen is a member of a heterocyclic ring</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D457/10" definition-exists="false" ipc-concordant="C07D457/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D457/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached in position 8</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D457/12" definition-exists="false" ipc-concordant="C07D457/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D457/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D457/14" definition-exists="false" ipc-concordant="C07D457/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D457/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing indolo [4, 3-f, g] quinoline ring systems condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D459/00" definition-exists="false" ipc-concordant="C07D459/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D459/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing benz [g] indolo [2, 3-a] quinolizine ring systems, e.g. yohimbine</text></title-part><title-part><text>16, 18-lactones thereof, e.g. reserpic acid lactone</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D461/00" definition-exists="false" ipc-concordant="C07D461/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D461/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing indolo [3,2,1-d,e] pyrido [3,2,1,j] [1,5]-naphthyridine ring systems, e.g. vincamine </text><reference><text>dimeric indolo alkaloids <class-ref scheme="cpc">C07D519/04</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D463/00" definition-exists="false" ipc-concordant="C07D463/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>C07D463/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: <media id="989" file-name="cpc-sch-C07D-0989.gif" type="gif"/> , e.g. carbacephalosporins</text></title-part><title-part><text>Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D463/02" definition-exists="false" ipc-concordant="C07D463/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D463/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation </text><reference><text>by microbiological processes <class-ref scheme="cpc">C12P17/18</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D463/04" definition-exists="false" ipc-concordant="C07D463/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D463/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by forming the ring or condensed ring systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D463/06" definition-exists="false" ipc-concordant="C07D463/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D463/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D463/08" definition-exists="false" ipc-concordant="C07D463/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D463/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Modification of a carboxyl group directly attached in position 2, e.g. esterification</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D463/10" definition-exists="false" ipc-concordant="C07D463/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>C07D463/10</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D463/12" definition-exists="false" ipc-concordant="C07D463/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D463/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals attached in position 7</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D463/14" definition-exists="false" ipc-concordant="C07D463/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D463/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached in position 7</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D463/16" definition-exists="false" ipc-concordant="C07D463/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D463/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D463/18" definition-exists="false" ipc-concordant="C07D463/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D463/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>further acylated by radicals derived from carboxylic acids or by nitrogen or sulfur analogues thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D463/20" definition-exists="false" ipc-concordant="C07D463/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D463/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the acylating radicals further substituted by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D463/22" definition-exists="false" ipc-concordant="C07D463/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D463/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>further substituted by nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D471/00" definition-exists="false" ipc-concordant="C07D471/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D471/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups <class-ref scheme="cpc">C07D451/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D463/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D471/02" definition-exists="false" ipc-concordant="C07D471/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D471/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D471/04" definition-exists="true" ipc-concordant="C07D471/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D471/04</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D471/06" definition-exists="false" ipc-concordant="C07D471/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D471/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D471/08" definition-exists="false" ipc-concordant="C07D471/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D471/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D471/10" definition-exists="false" ipc-concordant="C07D471/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D471/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D471/12" definition-exists="false" ipc-concordant="C07D471/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D471/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains three hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D471/14" definition-exists="false" ipc-concordant="C07D471/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D471/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D471/16" definition-exists="false" ipc-concordant="C07D471/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D471/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D471/18" definition-exists="false" ipc-concordant="C07D471/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D471/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D471/20" definition-exists="false" ipc-concordant="C07D471/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D471/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D471/22" definition-exists="false" ipc-concordant="C07D471/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>C07D471/22</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>in which the condensed systems contains four or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D473/00" definition-exists="false" ipc-concordant="C07D473/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing purine ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D473/02" definition-exists="false" ipc-concordant="C07D473/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D473/02</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D473/04" definition-exists="false" ipc-concordant="C07D473/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>two oxygen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D473/06" definition-exists="false" ipc-concordant="C07D473/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D473/08" definition-exists="false" ipc-concordant="C07D473/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with methyl radicals in positions 1 and 3, e.g. theophylline</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D473/10" definition-exists="false" ipc-concordant="C07D473/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with methyl radicals in positions 3 and 7, e.g. theobromine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D473/12" definition-exists="false" ipc-concordant="C07D473/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D473/12</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with methyl radicals in positions 1, 3, and 7, e.g. caffeine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D473/14" definition-exists="false" ipc-concordant="C07D473/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D473/14</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with two methyl radicals in positions 1 and 3 and two methyl radicals in positions 7, 8, or 9</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D473/16" definition-exists="false" ipc-concordant="C07D473/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>two nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D473/18" definition-exists="false" ipc-concordant="C07D473/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>one oxygen and one nitrogen atom, e.g. guanine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D473/20" definition-exists="false" ipc-concordant="C07D473/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>two sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D473/22" definition-exists="false" ipc-concordant="C07D473/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>one oxygen and one sulfur atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D473/24" definition-exists="false" ipc-concordant="C07D473/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>one nitrogen and one sulfur atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D473/26" definition-exists="false" ipc-concordant="C07D473/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D473/26</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with an oxygen, sulphur, or nitrogen atom directly attached in position 2 or 6, but not in both</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D473/28" definition-exists="false" ipc-concordant="C07D473/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D473/30" definition-exists="false" ipc-concordant="C07D473/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 6, e.g. hypoxanthine</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D473/32" definition-exists="false" ipc-concordant="C07D473/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D473/34" definition-exists="false" ipc-concordant="C07D473/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 6, e.g. adenine</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D473/36" definition-exists="false" ipc-concordant="C07D473/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atom</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D473/38" definition-exists="false" ipc-concordant="C07D473/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D473/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>attached in position 6</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D473/40" definition-exists="false" ipc-concordant="C07D473/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D473/40</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with halogen atoms or perhalogeno-alkyl radicals directly attached in position 2 or 6</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D475/00" definition-exists="false" ipc-concordant="C07D475/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D475/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing pteridine ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D475/02" definition-exists="false" ipc-concordant="C07D475/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D475/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an oxygen atom directly attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D475/04" definition-exists="false" ipc-concordant="C07D475/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D475/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a nitrogen atom directly attached in position 2</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D475/06" definition-exists="false" ipc-concordant="C07D475/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D475/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a nitrogen atom directly attached in position 4</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D475/08" definition-exists="false" ipc-concordant="C07D475/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D475/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a nitrogen atom directly attached in position 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D475/10" definition-exists="false" ipc-concordant="C07D475/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D475/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an aromatic or hetero-aromatic ring directly attached in position 2</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D475/12" definition-exists="false" ipc-concordant="C07D475/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D475/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing pteridine ring systems condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D475/14" definition-exists="false" ipc-concordant="C07D475/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D475/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Benz [g] pteridines, e.g. riboflavin</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D477/00" definition-exists="false" ipc-concordant="C07D477/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D477/00</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Heterocyclic compounds containing 1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: <media id="990" file-name="cpc-sch-C07D-0990.gif" type="gif"/>, e.g. carbapenicillins, thienamycins</text></title-part><title-part><text>Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulphur-containing hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D477/02" definition-exists="false" ipc-concordant="C07D477/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation </text><reference><text>by microbiological processes <class-ref scheme="cpc">C12P17/18</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D477/04" definition-exists="false" ipc-concordant="C07D477/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by forming the ring or condensed ring systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D477/06" definition-exists="false" ipc-concordant="C07D477/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D477/08" definition-exists="false" ipc-concordant="C07D477/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Modification of a carboxyl group directly attached in position 2, e.g. esterification</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D477/10" definition-exists="false" ipc-concordant="C07D477/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D477/10</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 4, and with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D477/12" definition-exists="false" ipc-concordant="C07D477/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached in position 6</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D477/14" definition-exists="false" ipc-concordant="C07D477/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached in position 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D477/16" definition-exists="false" ipc-concordant="C07D477/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 3</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D477/18" definition-exists="false" ipc-concordant="C07D477/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D477/20" definition-exists="false" ipc-concordant="C07D477/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D477/22" definition-exists="false" ipc-concordant="C07D477/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D477/24" definition-exists="false" ipc-concordant="C07D477/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 6</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D477/26" definition-exists="false" ipc-concordant="C07D477/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D477/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 4</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D487/00" definition-exists="false" ipc-concordant="C07D487/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D487/00</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups <class-ref scheme="cpc">C07D451/00</class-ref> - <class-ref scheme="cpc">C07D477/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D487/02" definition-exists="false" ipc-concordant="C07D487/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D487/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D487/04" definition-exists="true" ipc-concordant="C07D487/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D487/04</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D487/06" definition-exists="false" ipc-concordant="C07D487/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D487/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D487/08" definition-exists="false" ipc-concordant="C07D487/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D487/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D487/10" definition-exists="false" ipc-concordant="C07D487/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D487/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D487/12" definition-exists="false" ipc-concordant="C07D487/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D487/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains three hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D487/14" definition-exists="false" ipc-concordant="C07D487/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D487/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D487/16" definition-exists="false" ipc-concordant="C07D487/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D487/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D487/18" definition-exists="false" ipc-concordant="C07D487/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D487/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D487/20" definition-exists="false" ipc-concordant="C07D487/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D487/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D487/22" definition-exists="false" ipc-concordant="C07D487/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D487/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains four or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D489/00" definition-exists="false" ipc-concordant="C07D489/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D489/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 4aH-8, 9 c- Iminoethano-phenanthro [4, 5-b, c, d] furan ring systems, e.g. derivatives of [4, 5-epoxy]-morphinan of the formula: <media id="991" file-name="cpc-sch-C07D-0991.gif" type="gif"/></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D489/02" definition-exists="false" ipc-concordant="C07D489/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D489/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oxygen atoms attached in positions 3 and 6, e.g. morphine, morphinone</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D489/04" definition-exists="false" ipc-concordant="C07D489/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D489/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Salts</text></title-part><title-part><text>Organic complexes</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D489/06" definition-exists="false" ipc-concordant="C07D489/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D489/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a hetero atom directly attached in position 14</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D489/08" definition-exists="false" ipc-concordant="C07D489/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D489/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxygen atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D489/09" definition-exists="false" ipc-concordant="C07D489/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D489/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing 4aH-8, 9 c-Iminoethano- phenanthro [4, 5-b, c, d] furan ring systems condensed with carbocyclic rings or ring systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D489/10" definition-exists="false" ipc-concordant="C07D489/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D489/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a bridge between positions 6 and 14</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D489/12" definition-exists="false" ipc-concordant="C07D489/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D489/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the bridge containing only two carbon atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D491/00" definition-exists="false" ipc-concordant="C07D491/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D491/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups <class-ref scheme="cpc">C07D451/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D459/00</class-ref>, <class-ref scheme="cpc">C07D463/00</class-ref>, <class-ref scheme="cpc">C07D477/00</class-ref> or <class-ref scheme="cpc">C07D489/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D491/02" definition-exists="false" ipc-concordant="C07D491/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D491/04" definition-exists="false" ipc-concordant="C07D491/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D491/044" definition-exists="false" ipc-concordant="C07D491/044" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/044</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only one oxygen atom as ring hetero atom in the oxygen-containing ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D491/048" definition-exists="false" ipc-concordant="C07D491/048" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the oxygen-containing ring being five-membered</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D491/052" definition-exists="false" ipc-concordant="C07D491/052" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/052</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the oxygen-containing ring being six-membered</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D491/056" definition-exists="false" ipc-concordant="C07D491/056" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/056</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two or more oxygen atoms as ring hetero atoms in the oxygen-containing ring</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D491/06" definition-exists="false" ipc-concordant="C07D491/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D491/08" definition-exists="false" ipc-concordant="C07D491/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D491/10" definition-exists="false" ipc-concordant="C07D491/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D491/107" definition-exists="false" ipc-concordant="C07D491/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only one oxygen atom as ring hetero atom in the oxygen-containing ring</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D491/113" definition-exists="false" ipc-concordant="C07D491/113" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/113</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two or more oxygen atoms as ring hetero atoms in the oxygen-containing ring</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D491/12" definition-exists="false" ipc-concordant="C07D491/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains three hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D491/14" definition-exists="true" ipc-concordant="C07D491/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D491/14</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D491/147" definition-exists="false" ipc-concordant="C07D491/147" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the condensed system containing one ring with oxygen as ring hetero atom and two rings with nitrogen as ring hetero atom</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D491/153" definition-exists="false" ipc-concordant="C07D491/153" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/153</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the condensed system containing two rings with oxygen as ring hetero atom and one ring with nitrogen as ring hetero atom</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D491/16" definition-exists="false" ipc-concordant="C07D491/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D491/18" definition-exists="true" ipc-concordant="C07D491/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D491/18</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D491/20" definition-exists="false" ipc-concordant="C07D491/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D491/22" definition-exists="false" ipc-concordant="C07D491/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D491/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains four or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D493/00" definition-exists="false" ipc-concordant="C07D493/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D493/02" definition-exists="false" ipc-concordant="C07D493/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D493/04" definition-exists="false" ipc-concordant="C07D493/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D493/06" definition-exists="false" ipc-concordant="C07D493/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D493/08" definition-exists="false" ipc-concordant="C07D493/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D493/10" definition-exists="false" ipc-concordant="C07D493/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D493/12" definition-exists="false" ipc-concordant="C07D493/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains three hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D493/14" definition-exists="false" ipc-concordant="C07D493/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D493/16" definition-exists="false" ipc-concordant="C07D493/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D493/18" definition-exists="false" ipc-concordant="C07D493/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D493/20" definition-exists="false" ipc-concordant="C07D493/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D493/22" definition-exists="false" ipc-concordant="C07D493/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D493/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains four or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D495/00" definition-exists="false" ipc-concordant="C07D495/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D495/02" definition-exists="false" ipc-concordant="C07D495/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D495/04" definition-exists="false" ipc-concordant="C07D495/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D495/06" definition-exists="false" ipc-concordant="C07D495/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D495/08" definition-exists="false" ipc-concordant="C07D495/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D495/10" definition-exists="false" ipc-concordant="C07D495/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D495/12" definition-exists="false" ipc-concordant="C07D495/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains three hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D495/14" definition-exists="false" ipc-concordant="C07D495/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D495/16" definition-exists="false" ipc-concordant="C07D495/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D495/18" definition-exists="false" ipc-concordant="C07D495/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D495/20" definition-exists="false" ipc-concordant="C07D495/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D495/22" definition-exists="false" ipc-concordant="C07D495/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D495/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains four or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D497/00" definition-exists="false" ipc-concordant="C07D497/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing in the condensed system at least one hetero ring having oxygen and sulfur atoms as the only ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D497/02" definition-exists="false" ipc-concordant="C07D497/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D497/04" definition-exists="false" ipc-concordant="C07D497/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D497/06" definition-exists="false" ipc-concordant="C07D497/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D497/08" definition-exists="false" ipc-concordant="C07D497/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D497/10" definition-exists="false" ipc-concordant="C07D497/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D497/12" definition-exists="false" ipc-concordant="C07D497/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains three hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D497/14" definition-exists="false" ipc-concordant="C07D497/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D497/16" definition-exists="false" ipc-concordant="C07D497/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D497/18" definition-exists="false" ipc-concordant="C07D497/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D497/20" definition-exists="false" ipc-concordant="C07D497/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D497/22" definition-exists="false" ipc-concordant="C07D497/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D497/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains four or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D498/00" definition-exists="false" ipc-concordant="C07D498/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms </text><reference><text>4-oxa-1-azabicyclo [3.2.0] heptanes, e.g. oxapenicillins <class-ref scheme="cpc">C07D503/00</class-ref>; 5-oxa-1-azabicyclo [4.2.0] octanes, e.g. oxacephalosporins <class-ref scheme="cpc">C07D505/00</class-ref>; analogues thereof having ring oxygen atoms in other position <class-ref scheme="cpc">C07D507/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D498/02" definition-exists="false" ipc-concordant="C07D498/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D498/04" definition-exists="false" ipc-concordant="C07D498/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D498/06" definition-exists="false" ipc-concordant="C07D498/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D498/08" definition-exists="false" ipc-concordant="C07D498/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D498/10" definition-exists="false" ipc-concordant="C07D498/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D498/12" definition-exists="false" ipc-concordant="C07D498/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains three hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D498/14" definition-exists="false" ipc-concordant="C07D498/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D498/16" definition-exists="false" ipc-concordant="C07D498/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D498/18" definition-exists="false" ipc-concordant="C07D498/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D498/20" definition-exists="false" ipc-concordant="C07D498/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D498/22" definition-exists="false" ipc-concordant="C07D498/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D498/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains four or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D499/00" definition-exists="false" ipc-concordant="C07D499/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: <media id="992" file-name="cpc-sch-C07D-0992.gif" type="gif"/> , e.g. penicillins, penems</text></title-part><title-part><text>Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D499/04" definition-exists="false" ipc-concordant="C07D499/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/06" definition-exists="false" ipc-concordant="C07D499/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by forming the ring or condensed ring systems </text><reference><text>by microbiological processes <class-ref scheme="cpc">C12P37/00</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/08" definition-exists="false" ipc-concordant="C07D499/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Modification of a carboxyl radical directly attached in position 2, e.g. esterification</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/10" definition-exists="false" ipc-concordant="C07D499/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Modification of an amino radical directly attached in position 6</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/12" definition-exists="false" ipc-concordant="C07D499/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acylation</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/14" definition-exists="false" ipc-concordant="C07D499/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of salts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/16" definition-exists="false" ipc-concordant="C07D499/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of alkali or alkaline earth metals</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/18" definition-exists="false" ipc-concordant="C07D499/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Separation</text></title-part><title-part><text>Purification</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/20" definition-exists="false" ipc-concordant="C07D499/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>via salts with organic bases</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D499/21" definition-exists="true" ipc-concordant="C07D499/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/21</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a nitrogen atom directly attached in position 6 and a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/22" definition-exists="false" ipc-concordant="C07D499/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Salts with organic bases</text></title-part><title-part><text>Complexes with organic compounds</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/24" definition-exists="false" ipc-concordant="C07D499/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with acyclic or carbocyclic compounds containing amino radicals</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/26" definition-exists="false" ipc-concordant="C07D499/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with heterocyclic compounds</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/28" definition-exists="true" ipc-concordant="C07D499/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with modified 2-carboxyl group</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/30" definition-exists="true" ipc-concordant="C07D499/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acid anhydride</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/32" definition-exists="true" ipc-concordant="C07D499/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Esters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/34" definition-exists="true" ipc-concordant="C07D499/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Thio-acid</text></title-part><title-part><text>Esters thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D499/36" definition-exists="true" ipc-concordant="C07D499/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>O-esters</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D499/38" definition-exists="true" ipc-concordant="C07D499/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>S-esters</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/40" definition-exists="true" ipc-concordant="C07D499/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Amides</text></title-part><title-part><text>Hydrazides</text></title-part><title-part><text>Azides</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/42" definition-exists="true" ipc-concordant="C07D499/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds with a free primary amino radical attached in position 6</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/44" definition-exists="false" ipc-concordant="C07D499/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds with an amino radical acylated by carboxylic acids, attached in position 6</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/46" definition-exists="true" ipc-concordant="C07D499/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with acyclic hydrocarbon radicals or such radicals substituted by carbocyclic or heterocyclic rings, attached to the carboxamido radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/48" definition-exists="true" ipc-concordant="C07D499/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a carbon chain, substituted by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, attached to the carboxamido radical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D499/50" definition-exists="true" ipc-concordant="C07D499/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted in beta-position to the carboxamido radical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D499/52" definition-exists="true" ipc-concordant="C07D499/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by oxygen or sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D499/54" definition-exists="true" ipc-concordant="C07D499/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D499/56" definition-exists="true" ipc-concordant="C07D499/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D499/58" definition-exists="true" ipc-concordant="C07D499/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted in alpha-position to the carboxamido radical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D499/60" definition-exists="true" ipc-concordant="C07D499/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D499/62" definition-exists="true" ipc-concordant="C07D499/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D499/64" definition-exists="true" ipc-concordant="C07D499/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D499/66" definition-exists="true" ipc-concordant="C07D499/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with alicyclic rings as additional substituents on the carbon chain</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D499/68" definition-exists="true" ipc-concordant="C07D499/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aromatic rings as additional substituents on the carbon chain</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D499/70" definition-exists="true" ipc-concordant="C07D499/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero rings as additional substituents on the carbon chain</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D499/72" definition-exists="true" ipc-concordant="C07D499/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by carbon atoms having three bonds to hetero atoms</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/74" definition-exists="true" ipc-concordant="C07D499/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with carbocyclic rings directly attached to the carboxamido radical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D499/76" definition-exists="true" ipc-concordant="C07D499/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero rings directly attached to the carboxamido radical</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/78" definition-exists="true" ipc-concordant="C07D499/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds with an amino radical, acylated by carbonic acid, or by nitrogen or sulfur analogues thereof, attached in position 6</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/80" definition-exists="true" ipc-concordant="C07D499/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds with a nitrogen-containing hetero ring, attached with the ring nitrogen atom in position 6</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D499/86" definition-exists="true" ipc-concordant="C07D499/86" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only atoms other than nitrogen atoms directly attached in position 6 and a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/861" definition-exists="true" ipc-concordant="C07D499/861" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/861</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a hydrocarbon radical or a substituted hydrocarbon radical, directly attached in position 6</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/865" definition-exists="true" ipc-concordant="C07D499/865" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/865</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 6</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D499/87" definition-exists="true" ipc-concordant="C07D499/87" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/87</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds being unsubstituted in position 3 or with substituents other than only two methyl radicals attached in position 3, and with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D499/88" definition-exists="false" ipc-concordant="C07D499/88" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/88</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds with a double bond between positions 2 and 3 and a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/881" definition-exists="true" ipc-concordant="C07D499/881" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/881</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a hydrogen atom or an unsubstituted hydrocarbon radical, attached in position 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/883" definition-exists="true" ipc-concordant="C07D499/883" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/883</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a substituted hydrocarbon radical attached in position 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/887" definition-exists="true" ipc-concordant="C07D499/887" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D499/887</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a hetero atom or a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D499/893" definition-exists="true" ipc-concordant="C07D499/893" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-12-01" status="published"><classification-symbol>C07D499/893</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a hetero ring or a condensed hetero ring system, directly attached in position 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D499/897" definition-exists="true" ipc-concordant="C07D499/897" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-12-01" status="published"><classification-symbol>C07D499/897</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds with substituents other than a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, directly attached in position 2</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D499/90" definition-exists="true" ipc-concordant="C07D499/90" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-12-01" status="published"><classification-symbol>C07D499/90</classification-symbol><class-title date-revised="2015-12-01"><title-part><text>further condensed with carbocyclic rings or ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D501/00" definition-exists="false" ipc-concordant="C07D501/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: <media id="993" file-name="cpc-sch-C07D-0993.gif" type="gif"/> , e.g. cephalosporins</text></title-part><title-part><text>Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D501/02" definition-exists="false" ipc-concordant="C07D501/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D501/04" definition-exists="false" ipc-concordant="C07D501/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D501/06" definition-exists="false" ipc-concordant="C07D501/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acylation of 7-aminocephalosporanic acid</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D501/08" definition-exists="false" ipc-concordant="C07D501/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by forming the ring or condensed ring systems </text><reference><text>by microbiological processes <class-ref scheme="cpc">C12P35/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D501/10" definition-exists="false" ipc-concordant="C07D501/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from compounds containing the penicillin ring system</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D501/12" definition-exists="false" ipc-concordant="C07D501/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Separation</text></title-part><title-part><text>Purification</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D501/14" definition-exists="false" ipc-concordant="C07D501/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds having a nitrogen atom directly attached in position 7</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D501/16" definition-exists="false" ipc-concordant="C07D501/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a double bond between positions 2 and 3</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D501/18" definition-exists="false" ipc-concordant="C07D501/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>7-Aminocephalosporanic or substituted 7-aminocephalosporanic acids</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D501/20" definition-exists="false" ipc-concordant="C07D501/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D501/22" definition-exists="false" ipc-concordant="C07D501/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with radicals containing only hydrogen and carbon atoms, attached in position 3</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D501/24" definition-exists="false" ipc-concordant="C07D501/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrocarbon radicals, substituted by hetero atoms or hetero rings, attached in position 3</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D501/26" definition-exists="false" ipc-concordant="C07D501/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methylene radicals, substituted by oxygen atoms</text></title-part><title-part><text>Lactones thereof with the 2-carboxyl group</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/28" definition-exists="false" ipc-concordant="C07D501/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by an aliphatic carboxylic acid, which is substituted by hetero atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/30" definition-exists="false" ipc-concordant="C07D501/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino-radical acylated by an araliphatic carboxylic acid</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/32" definition-exists="false" ipc-concordant="C07D501/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by an araliphatic carboxylic acid, which is substituted on the aliphatic radical by hetero atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/34" definition-exists="false" ipc-concordant="C07D501/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by carboxylic acids containing hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D501/36" definition-exists="false" ipc-concordant="C07D501/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methylene radicals, substituted by sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D501/38" definition-exists="false" ipc-concordant="C07D501/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methylene radicals, substituted by nitrogen atoms</text></title-part><title-part><text>Lactams thereof with the 2-carboxyl group</text></title-part><title-part><text>Methylene radicals substituted by nitrogen-containing hetero rings attached by the ring nitrogen atom</text></title-part><title-part><text>Quaternary compounds thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/40" definition-exists="false" ipc-concordant="C07D501/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by an aliphatic carboxylic acid, which is substituted by hetero atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/42" definition-exists="false" ipc-concordant="C07D501/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by an araliphatic carboxylic acid</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/44" definition-exists="false" ipc-concordant="C07D501/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by an araliphatic carboxylic acid, which is substituted on the aliphatic radical by hetero atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/46" definition-exists="false" ipc-concordant="C07D501/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by carboxylic acids containing hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D501/48" definition-exists="false" ipc-concordant="C07D501/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D501/48</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Methylene radicals, substituted by hetero rings </text><reference><text><class-ref scheme="cpc">C07D501/38</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D501/46</class-ref> take precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/50" definition-exists="false" ipc-concordant="C07D501/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by an aliphatic carboxylic acid, which is substituted by hetero atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/52" definition-exists="false" ipc-concordant="C07D501/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by an araliphatic carboxylic acid</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/54" definition-exists="false" ipc-concordant="C07D501/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by an araliphatic carboxylic acid, which is substituted on the aliphatic radical by hetero atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D501/56" definition-exists="false" ipc-concordant="C07D501/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the 7-amino radical acylated by carboxylic acids containing hetero rings</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D501/57" definition-exists="false" ipc-concordant="C07D501/57" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/57</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a further substituent in position 7, e.g. cephamycines</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D501/58" definition-exists="false" ipc-concordant="C07D501/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a nitrogen atom, which is a member of a hetero ring, attached in position 7</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D501/59" definition-exists="false" ipc-concordant="C07D501/59" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/59</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached in position 3</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D501/60" definition-exists="false" ipc-concordant="C07D501/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a double bond between positions 3 and 4</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D501/62" definition-exists="false" ipc-concordant="C07D501/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D501/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds further condensed with a carbocyclic ring or ring system</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D503/00" definition-exists="false" ipc-concordant="C07D503/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 4-oxa-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: <media id="994" file-name="cpc-sch-C07D-0994.gif" type="gif"/> , e.g. oxapenicillins, clavulanic acid derivatives</text></title-part><title-part><text>Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D503/02" definition-exists="false" ipc-concordant="C07D503/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation </text><reference><text>by microbiological processes <class-ref scheme="cpc">C12P17/18</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D503/04" definition-exists="false" ipc-concordant="C07D503/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by forming the ring or condensed ring systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D503/06" definition-exists="false" ipc-concordant="C07D503/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D503/08" definition-exists="false" ipc-concordant="C07D503/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Modification of a carboxyl group directly attached in position 2, e.g. esterification</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D503/10" definition-exists="false" ipc-concordant="C07D503/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D503/12" definition-exists="false" ipc-concordant="C07D503/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>unsubstituted in position 6</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D503/14" definition-exists="false" ipc-concordant="C07D503/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, other than a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, attached in position 3</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D503/16" definition-exists="false" ipc-concordant="C07D503/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radicals substituted by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D503/18" definition-exists="false" ipc-concordant="C07D503/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by oxygen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D503/20" definition-exists="false" ipc-concordant="C07D503/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by sulfur atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D503/22" definition-exists="false" ipc-concordant="C07D503/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D503/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D505/00" definition-exists="false" ipc-concordant="C07D505/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing 5-oxa-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: <media id="995" file-name="cpc-sch-C07D-0995.gif" type="gif"/> , e.g. oxacephalosporins</text></title-part><title-part><text>Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D505/02" definition-exists="false" ipc-concordant="C07D505/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation </text><reference><text>by microbiological processes <class-ref scheme="cpc">C12P17/18</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D505/04" definition-exists="false" ipc-concordant="C07D505/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by forming the ring or condensed ring systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D505/06" definition-exists="false" ipc-concordant="C07D505/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D505/08" definition-exists="false" ipc-concordant="C07D505/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Modification of a carboxyl group directly attached in position 2, e.g. esterification</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D505/10" definition-exists="false" ipc-concordant="C07D505/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D505/12" definition-exists="false" ipc-concordant="C07D505/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>substituted in position 7</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C07D505/14" definition-exists="false" ipc-concordant="C07D505/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hetero atoms directly attached in position 7</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C07D505/16" definition-exists="false" ipc-concordant="C07D505/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrogen atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C07D505/18" definition-exists="false" ipc-concordant="C07D505/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>further acylated by radicals derived from carboxylic acids or by nitrogen or sulfur analogues thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="C07D505/20" definition-exists="false" ipc-concordant="C07D505/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the acylating radicals further substituted by hetero atoms or by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D505/22" definition-exists="false" ipc-concordant="C07D505/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>further substituted by singly-bound nitrogen atoms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="C07D505/24" definition-exists="false" ipc-concordant="C07D505/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D505/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>further substituted by doubly-bound nitrogen atoms</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D507/00" definition-exists="false" ipc-concordant="C07D507/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D507/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing a condensed beta-lactam ring system, not provided for by groups <class-ref scheme="cpc">C07D463/00</class-ref>, <class-ref scheme="cpc">C07D477/00</class-ref> or <class-ref scheme="cpc">C07D499/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D505/00</class-ref></text></title-part><title-part><text>Such ring systems being further condensed</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D507/02" definition-exists="false" ipc-concordant="C07D507/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D507/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing 3-oxa-1-azabicyclo [3.2.0] heptane ring systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D507/04" definition-exists="false" ipc-concordant="C07D507/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D507/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing 2-oxa-1-azabicyclo [4.2.0] octane ring systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D507/06" definition-exists="false" ipc-concordant="C07D507/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D507/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing 3-oxa-1-azabicyclo [4.2.0] octane ring systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D507/08" definition-exists="false" ipc-concordant="C07D507/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D507/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>containing 4-oxa-1-azabicyclo [4.2.0] octane ring systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D513/00" definition-exists="false" ipc-concordant="C07D513/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D513/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups <class-ref scheme="cpc">C07D463/00</class-ref>, <class-ref scheme="cpc">C07D477/00</class-ref> or <class-ref scheme="cpc">C07D499/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D507/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D513/02" definition-exists="false" ipc-concordant="C07D513/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D513/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D513/04" definition-exists="false" ipc-concordant="C07D513/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D513/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D513/06" definition-exists="false" ipc-concordant="C07D513/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D513/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D513/08" definition-exists="false" ipc-concordant="C07D513/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D513/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D513/10" definition-exists="false" ipc-concordant="C07D513/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D513/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D513/12" definition-exists="false" ipc-concordant="C07D513/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>C07D513/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains three hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D513/14" definition-exists="false" ipc-concordant="C07D513/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D513/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D513/16" definition-exists="false" ipc-concordant="C07D513/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D513/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D513/18" definition-exists="false" ipc-concordant="C07D513/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D513/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D513/20" definition-exists="false" ipc-concordant="C07D513/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D513/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D513/22" definition-exists="false" ipc-concordant="C07D513/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D513/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains four or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D515/00" definition-exists="false" ipc-concordant="C07D515/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D515/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen, oxygen, and sulfur atoms as the only ring hetero atoms, not provided for in groups <class-ref scheme="cpc">C07D463/00</class-ref>, <class-ref scheme="cpc">C07D477/00</class-ref> or <class-ref scheme="cpc">C07D499/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D507/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D515/02" definition-exists="false" ipc-concordant="C07D515/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D515/04" definition-exists="false" ipc-concordant="C07D515/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D515/06" definition-exists="false" ipc-concordant="C07D515/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D515/08" definition-exists="false" ipc-concordant="C07D515/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D515/10" definition-exists="false" ipc-concordant="C07D515/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D515/12" definition-exists="false" ipc-concordant="C07D515/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains three hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D515/14" definition-exists="false" ipc-concordant="C07D515/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D515/16" definition-exists="false" ipc-concordant="C07D515/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D515/18" definition-exists="false" ipc-concordant="C07D515/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D515/20" definition-exists="false" ipc-concordant="C07D515/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D515/22" definition-exists="false" ipc-concordant="C07D515/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D515/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains four or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D517/00" definition-exists="false" ipc-concordant="C07D517/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D517/00</classification-symbol><class-title date-revised="2022-08-01"><title-part><text>Heterocyclic compounds containing in the condensed system at least one hetero ring having selenium, tellurium, or halogen atoms as ring hetero atoms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D517/02" definition-exists="false" ipc-concordant="C07D517/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains two hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D517/04" definition-exists="false" ipc-concordant="C07D517/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D517/06" definition-exists="false" ipc-concordant="C07D517/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D517/08" definition-exists="false" ipc-concordant="C07D517/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D517/10" definition-exists="false" ipc-concordant="C07D517/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D517/12" definition-exists="false" ipc-concordant="C07D517/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains three hetero rings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D517/14" definition-exists="false" ipc-concordant="C07D517/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ortho-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D517/16" definition-exists="false" ipc-concordant="C07D517/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Peri-condensed systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D517/18" definition-exists="false" ipc-concordant="C07D517/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bridged systems</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C07D517/20" definition-exists="false" ipc-concordant="C07D517/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spiro-condensed systems</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D517/22" definition-exists="false" ipc-concordant="C07D517/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D517/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the condensed system contains four or more hetero rings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D519/00" definition-exists="false" ipc-concordant="C07D519/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D519/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups <class-ref scheme="cpc">C07D453/00</class-ref> or <class-ref scheme="cpc">C07D455/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D519/02" definition-exists="false" ipc-concordant="C07D519/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D519/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ergot alkaloids of the cyclic peptide type</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D519/04" definition-exists="false" ipc-concordant="C07D519/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C07D519/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dimeric indole alkaloids, e.g. vincaleucoblastine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C07D519/06" definition-exists="false" ipc-concordant="C07D519/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>C07D519/06</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>containing at least one condensed beta-lactam ring system, provided for by groups <class-ref scheme="cpc">C07D463/00</class-ref>, <class-ref scheme="cpc">C07D477/00</class-ref> or <class-ref scheme="cpc">C07D499/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">C07D507/00</class-ref>, e.g. a penem or a cepham system</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C07D521/00" definition-exists="true" ipc-concordant="C07D521/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-08-01" status="published"><classification-symbol>C07D521/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heterocyclic compounds containing unspecified hetero rings</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> This group is only used for the classification of heterocyclic compounds the chemical structure of which are not specified, i.e. only in those cases where the heterocyclic compounds cannot be classified in any of groups <class-ref scheme="cpc">C07D201/00</class-ref> - <class-ref scheme="cpc">C07D519/00</class-ref>.</note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item></class-scheme>