Novel 17 .alpha.-aryl-steroids
US4203981A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1979 |
| Grant date | May 20, 1980 |
| Priority date | — |
| Expiry date | Jan 3, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J71/0015
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel steroids of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen and acyl of an organic carboxylic acid of 1 to 18 carbon atoms, R.sub.2 is selected from the group consisting of optionally substituted aryl of 6 to 12 carbon atoms and optionally substituted heterocyclic selected from the group consisting of furyl, thienyl, pyridyl and pyrimidyl, the optional substituents being selected from the group consisting of hydroxy, alkyl and alkoxy of 1 to 4 carbon atoms, halogens and --CF.sub.3, the dotted line in the A ring indicates an optional .DELTA..sup.1(2) - double bond and A may be oxo and B is hydrogen or A is .DELTA.--OH and B is hydrogen or halogen or A and B form a .DELTA..sup.9(10) - double bond having very good anti-inflammatory activity and their preparation and novel intermediates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.