Preparation of 17.beta.-hydroxyacetyl-17.alpha.-ol-steroids
US4565656A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1982 |
| Grant date | Jan 21, 1986 |
| Priority date | — |
| Expiry date | Jan 27, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J5/0053
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel process for the preparation of 17.beta.-hydroxyacetyl-17.alpha.-ol-steroids of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms optionally substituted with halogen or an oxygen or nitrogen function and alkenyl and alkynyl of 2 to 4 carbon atoms, R.sub.2 is alkyl of 1 to 4 carbon atoms and the A,B,C and D rings may contain one or more double bonds and are optionally substituted with at least one member of the group consisting of hydroxy, keto, halogen, alkyl and alkoxy of 1 to 4 carbon atoms and alkenyl and alkynyl of 2 to 4 carbon atoms which compounds are generally known of the cortisonic type with known properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.