CPC Subgroup
A61K 31/59 Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems
Full Title
Medicinal preparations containing organic active ingredients > Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems
2 direct subcodes
Child Classifications
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- A61K 31/592 9,10-Secoergostane derivatives, e.g. ergocalciferol, i.e. vitamin D2
- A61K 31/593 9,10-Secocholestane derivatives, e.g. cholecalciferol, i.e. vitamin D3