Preparation process for 20-keto 21(S) hydroxy steroids compounds and intermediates
US5473087A · kind A · utility
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Key dates
| Filing date | Sep 16, 1994 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Sep 16, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P41/004
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Mixtures of compounds of ##STR1## or a mixture of the latter and a compound of the formula ##STR2## which are useful intermediates for the preparation 20-keto-21(S)-hydroxy steroids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.