Therapeutically useful N-phenylaniline derivatives
US4223039A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1979 |
| Grant date | Sep 16, 1980 |
| Priority date | — |
| Expiry date | Mar 14, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C205/45
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are provided compounds of the general formula ##STR1## in which Ar represents a phenyl group which is unsubstituted or substituted by a halogen atom or a lower alkyl group, or represents a thienyl group, R.sub.1 represents a hydrogen or halogen atom or, when the Ar--CO-- grouping is in the meta-position with respect to the nitrogen atom, a lower alkyl group, R.sub.2 represents a hydrogen atom, or a lower alkyl or an acyl group, and R.sub.3 represents a hydrogen atom, a lower alkyl or a phenyl group and a physiologically acceptable salt thereof. The compounds of the general formula I and their salts have therapeutic utility, especially as analgesics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.