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

Full Title

Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings > not condensed with other rings > having three double bonds between ring members or between ring members and non-ring members > 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

Child Classifications

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• C07D 237/12 Halogen atoms or nitro radicals
• C07D 237/14 Oxygen atoms
• C07D 237/18 Sulfur atoms
• C07D 237/20 Nitrogen atoms (nitro radicals C07D237/12)
• C07D 237/22 Nitrogen and oxygen atoms
• C07D 237/24 Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen