Preparation of 6.alpha., 9.alpha.-difluoro steroids
US5478957A · kind A · utility
6Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1994 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | Jan 26, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J3/005
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of 6.alpha.,9.alpha.-difluoro steroids of the formula ##STR1## wherein R is hydrogen or an ester remainder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.