Novel biphenyl derivative and preparation and use thereof
US4996331A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1989 |
| Grant date | Feb 26, 1991 |
| Priority date | — |
| Expiry date | Apr 24, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D317/68
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a novel biphenyl derivative having a liver ailment-moderating action and effective as a remedy for acute hepatitis and chronic hepatitis, a process for the preparation of this biphenyl derivative and a liver ailment-moderating agent comprising this diphenyl derivative as an effective ingredient. This diphenyl derivative is represented by the following formula: ##STR1## wherein R.sub.0 and R.sub.1 independently stand for a lower alkyl group or R.sub.0 and R.sub.1 together represent a group O.dbd.C<, R.sub.2 stands for an alkyl group having 1 to 3 carbon atoms, and R.sub.3 and R.sub.4 independently stand for a hydrogen atom or a lower alkyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.