Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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507/00
Heterocyclic compounds containing a condensed beta-lactam ring system, not provided for by groups C07D463/00, C07D477/00 or C07D499/00 - C07D505/00; Such ring systems being further condensed
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