Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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209/00
Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
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C07D209/02
condensed with one carbocyclic ring
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C07D209/44
Iso-indoles; Hydrogenated iso-indoles
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C07D209/48
with oxygen atoms in positions 1 and 3, e.g. phthalimide
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