Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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317/00
Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
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C07D317/08
having the hetero atoms in positions 1 and 3
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C07D317/44
ortho- or peri-condensed with carbocyclic rings or ring systems
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C07D317/46
condensed with one six-membered ring
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C07D317/48
Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
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C07D317/62
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
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C07D317/68
Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
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