Intermediate steroid compounds
US5401840A · kind A · utility
4Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1993 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Aug 12, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel compounds of the formula ##STR1## wherein either K' is oxygen or a K, a protective group of the oxo of the formula ##STR2## wherein n is 2 or 3, the 17-position dotted line is a bond, R.sub.a and R.sub.b are individually selected from the group consisting of hydrogen, hydroxy, alkyl and alkoxy of 1 to 4 carbon atoms or K' is an oxygen, the 17-position dotted line is an epoxy and R.sub.a and R.sub.b have the meaning indicated above which are useful intermediates for the preparation of hydrocortisone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.