5-acylamino-1,2,4-thiadiazoles, their preparation and pharmaceutical compositions containing them
US5534530A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1994 |
| Grant date | Jul 9, 1996 |
| Priority date | — |
| Expiry date | Apr 13, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to thiadiazole derivatives corresponding to the general formula ##STR1## in which Ar represents a nitrogen-containing aromatic heterocycle, in particular indolyl which is substituted or unsubstituted on the nitrogen atom with CO--(C.sub.1 -C.sub.4)alkyl; with (CH.sub.2).sub.n COR in which n represents 1 or 2 and R represents OR.sub.1 or NR.sub.1 R.sub.2 with R.sub.1 and R.sub.2, which may be identical or different, representing H or (C.sub.1 -C.sub.4)alkyl; with (C.sub.1 -C.sub.4) hydroxyalkyl; with (C.sub.2 -C.sub.6) alkoxyalkyl; tetrahydropyranyl; or with a --(CH.sub.2).sub.3 -- chain, the last carbon of which is attached to the phenyl ring of the indole to form a 6-membered ring; PA0 Z represents (a) the group ##STR2## where A and B, independently of each other, represent C, CH or N; and X.sub.1, X.sub.2, X.sub.3 and X.sub.4, which may be identical or different, represent H, (C.sub.1 -C.sub.3)alkyl, (C.sub.1 -C.sub.3)alkoxy, Cl, Br or trifluoromethyl, or alternatively (b) an optionally substituted naphthyl group, as well as their pharmaceutically acceptable salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.