DIFF Subgroup
C07D 205/02 not condensed with other rings
Introduced: July 1974
Full Title
Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom > not condensed with other rings
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 205/04 having no double bonds between ring members or between ring members and non-ring members since 1974 IPC+CPC Available in IPC and CPC
- C07D 205/06 having one double bond between ring members or between a ring member and a non-ring member since 1974 IPC+CPC Available in IPC and CPC
- C07D 205/10 having two double bonds between ring members or between ring members and non-ring members since 1974 IPC+CPC Available in IPC and CPC