Benzene compounds having two pyridazinone substituents
US4904664A · kind A · utility
1Cited by
10References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1986 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Jul 1, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D237/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to pyridazinone derivatives which have inotropic, vasodilator and bronchodilator activity. The compounds of the invention are described by formula (I): ##STR1## wherein: R.sup.1 is hydrogen or methyl; PA1 R.sup.2 is hydrogen or methyl; and represent double or single bonds; and the benzene ring is para- or meta-substituted; and pharmaceutically acceptable salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.