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PCE
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DIFF Subgroup
C07D 239/88

Oxygen atoms

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 > Oxygen atoms

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 239/90 with acyclic radicals attached in position 2 or 3 since 1974 IPC+CPC Available in IPC and CPC
  • C07D 239/91 with aryl or aralkyl radicals attached in position 2 or 3 since 1974 IPC+CPC Available in IPC and CPC
  • C07D 239/92 with hetero atoms directly attached to nitrogen atoms of the hetero ring since 1974 IPC+CPC Available in IPC and CPC