Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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241/00
Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
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C07D241/36
condensed with carbocyclic rings or ring systems
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C07D241/38
with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
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C07D241/44
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
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