Substituted amic acid derivatives
US5777150A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Aug 13, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D333/58
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound of the formula (I) or its pharmaceutically acceptable salt or ester: ##STR1## wherein each of ##STR2## which are the same or different, is an aryl group or a heteroaromatic ring group; A is a C.sub.3-8 linear saturated or unsaturated aliphatic hydrocarbon group which may have substituent(s) selected from the group consisting of a lower alkyl group, a hydroxyl group, a lower alkoxy group, a carboxyl group, an aryl group and an aralkyl group; Q is a single bond or a group of the formula --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --OCH.sub.2 --, --SCH.sub.2 --, --CH.sub.2 O-- or --CH.sub.2 S--; each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 which are the same or different, is a hydrogen atom, a halogen atom, a lower alkyl group, a hydroxyl group, a lower alkoxy group, or an aryl or heteroaromatic ring group which may have substituent(s) selected from the group consisting of a halogen atom, a lower alkyl group and a lower alkoxy group; each of R.sup.5, R.sup.6 and R.sup.7 which are the same or different, is a hydrogen atom or a lower alkyl group; and R.sup.8 is a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkynyl group or an aralkyl g…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.