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PCE
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DIFF Subgroup
C07D 239/86

with hetero atoms directly attached in position 4

Introduced: July 1974

Full Title

Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings > condensed with carbocyclic rings or ring systems > Quinazolines; Hydrogenated quinazolines > with hetero atoms directly attached in position 4

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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  • C07D 239/93 Sulfur atoms since 1974 IPC+CPC Available in IPC and CPC
  • C07D 239/94 Nitrogen atoms since 1974 IPC+CPC Available in IPC and CPC