Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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239/00
Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
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C07D239/02
not condensed with other rings
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C07D239/06
having one double bond between ring members or between a ring member and a non-ring member
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C07D239/08
with hetero atoms directly attached in position 2
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C07D239/10
Oxygen or sulfur atoms
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