Antipsoriatic agents
US5073568A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1988 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Nov 14, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D309/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to compounds of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl; A is ##STR2## or A is ##STR3## wherein R.sub.2 is lower alkyl; R.sub.3 is phenyl, or phenyl substituted by 1 to 3 substituents selected from the group consisting of halo, lower alkyl, and lower alkoxy; and R.sub.4 is hydrogen or methyl or the corresponding hydroxy acid of formula ##STR4## wherein A is ##STR5## or A is ##STR6## and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as described above; or a pharmaceutically acceptable salt of said acid, a C.sub.1-4 alkyl ester of said acid, an acetylamino-substituted-C.sub.1-4 alkyl ester of said acid, a phenyl-dimethylamino ester of said acid or a .alpha.-monoglyceride of said acid. The compounds of formulas I and II are useful as agents for the treatment of hyperproliferative skin diseases such as psoriasis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.