Di phenylpyridazine compounds, processes for the preparation thereof and pharmaceutical compositions comprising the same
US4931453A · kind A · utility
5Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1988 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Dec 19, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D471/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to diphenylpyridazine compounds useful in the treatment of cerebrovascular disease, of the formula: ##STR1## wherein R.sup.1 is piperazinyl(lower)alkyl, carbamoyl substituted with piperazinyl(lower)alkyl, or piperazinylcarbonyl, in each of which a piperazinyl group may be substituted with lower alkyl, PA0 R.sup.2 is phenyl substituted with nitro, and PA0 R.sup.3 is hydrogen or halogen, or a pharmaceutically acceptable salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.