with only hydrogen or carbon atoms directly attached to the ring nitrogen atom

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Heterocyclic compounds containing rings having one nitrogen atom as the only ring hetero atom, according to more than one of groups > with only hydrogen or carbon atoms directly attached to the ring nitrogen atom

CPC:

Heterocyclic compounds containing rings having one nitrogen atom as the only ring hetero atom, according to more than one of groups C07D203/00 - C07D225/00 > with only hydrogen or carbon atoms directly attached to the ring nitrogen atom

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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C07D 227/04 with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached to ring carbon atoms since 1974 IPC+CPC Available in IPC and CPC
C07D 227/06 with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms since 1974 IPC+CPC Available in IPC and CPC