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PCE
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DIFF Subgroup
C07D 209/02

condensed with one carbocyclic ring

Introduced: July 1974

Full Title

Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom > condensed with one carbocyclic ring

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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  • C07D 209/52 condensed with a ring other than six-membered since 1974 IPC+CPC Available in IPC and CPC
  • C07D 209/54 Spiro-condensed since 1974 IPC+CPC Available in IPC and CPC