HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)

Introduced: September 1968

Description

Heterocyclic compounds containing one or more atoms other than carbon in a ring structure, including nitrogen, oxygen, sulfur, phosphorus, and other heteroatoms. This subclass encompasses diverse ring systems ranging from simple five- and six-membered rings (such as pyrroles, furans, thiophenes, and pyridines) to complex polycyclic and fused ring structures. Compounds are classified by ring size, number of heteroatoms, and their position within the ring system, with separate divisions addressing specific chemical properties and synthesis routes. Adjacent subclass C07C covers acyclic and carbocyclic organic compounds, while C07B addresses general methods of organic synthesis applicable across compound classes.

Title

Titles differ between systems:

IPC: HETEROCYCLIC COMPOUNDS

CPC: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)

Full Title

Full titles differ between systems:

IPC:

HETEROCYCLIC COMPOUNDS

CPC:

HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)

IPC and CPC are identically structured here. All 109 subcodes exist in both systems.

35 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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C07D 201/00 Preparation, separation, purification or stabilisation of unsubstituted lactams since 1974 IPC+CPC Available in IPC and CPC
C07D 203/00 Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom since 1974 IPC+CPC Available in IPC and CPC
C07D 205/00 Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom since 1974 IPC+CPC Available in IPC and CPC
C07D 207/00 Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom since 1974 IPC+CPC Available in IPC and CPC
C07D 209/00 Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom since 1974 IPC+CPC Available in IPC and CPC
C07D 211/00 Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings since 1974 IPC+CPC Available in IPC and CPC
C07D 213/00 Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members since 1974 IPC+CPC Available in IPC and CPC
C07D 215/00 Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems since 1974 IPC+CPC Available in IPC and CPC
C07D 217/00 Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems since 1974 IPC+CPC Available in IPC and CPC
C07D 219/00 Heterocyclic compounds containing acridine or hydrogenated acridine ring systems since 1974 IPC+CPC Available in IPC and CPC
C07D 221/00 Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 since 1974 IPC+CPC Available in IPC and CPC
C07D 223/00 Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom since 1974 IPC+CPC Available in IPC and CPC
C07D 225/00 Heterocyclic compounds containing rings of more than seven members having one nitrogen atom as the only ring hetero atom since 1974 IPC+CPC Available in IPC and CPC
C07D 227/00 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 since 1974 IPC+CPC Available in IPC and CPC
C07D 229/00 Heterocyclic compounds containing rings of less than five members having two nitrogen atoms as the only ring hetero atoms since 1974 IPC+CPC Available in IPC and CPC
C07D 231/00 Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings since 1974 IPC+CPC Available in IPC and CPC
C07D 233/00 Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings since 1974 IPC+CPC Available in IPC and CPC
C07D 235/00 Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings since 1974 IPC+CPC Available in IPC and CPC
C07D 237/00 Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings since 1974 IPC+CPC Available in IPC and CPC
C07D 239/00 Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings since 1974 IPC+CPC Available in IPC and CPC