Androstane carbothioates
US4335121A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1981 |
| Grant date | Jun 15, 1982 |
| Priority date | — |
| Expiry date | Feb 13, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J71/0015
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula ##STR1## wherein R.sup.1 represents a fluoro-, chloro- or bromo-methyl group or a 2'-fluoroethyl group, R.sup.2 represents a group COR.sup.6 where R.sup.6 is a C.sub.1-3 alkyl group or OR.sup.2 and R.sup.3 together form a 16.alpha.,17.alpha.-isopropylidenedioxy group; R.sup.3 represents a hydrogen atom, a methyl group (which may be in either the .alpha.- or .beta.-configuration) or a methylene group; R.sup.4 represents a hydrogen, chlorine or fluorine atom; R.sup.5 represents a hydrogen or fluorine atom and symbol represents a single or double bond have good anti-inflammatory activity, particularly on topical applications. The compounds of formula I are prepared by esterification, halogenation, reduction, deprotection and reaction at a 9,11-double bond to form a 9.alpha.-halo-11.beta.-hydroxy grouping. Pharmaceutical compositions containing the compounds of formula I and methods for the use of the compounds are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.