Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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295/00
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
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C07D295/02
containing only hydrogen and carbon atoms in addition to the ring hetero elements
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C07D295/027
containing only one hetero ring
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C07D295/033
with the ring nitrogen atoms directly attached to carbocyclic rings
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