Pharmaceutical compounds
US5158971A · kind A · utility
1Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1991 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | May 24, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D333/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A pharmaceutical compound of the formula ##STR1## in which R.sup.1 is halo-C.sub.1-10 alkyl, C.sub.1-10 alkylthio, halo-C.sub.1-10 alkylthio or optionally substituted phenylthio, R.sup.2 is hydrogen or C.sub.1-4 alkyl, R.sup.3 and R.sup.4 are each hydrogen or C.sub.1-4 alkyl, and X is oxygen or sulphur; and salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.