Novel pyridazinone compounds, compositions thereof and method of use
US5019575A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Feb 9, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D401/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New heterocyclic compounds of formula I ##STR1## in which Het means one of following groups; ##STR2## wherein R.sub.11, R.sub.13 and R.sub.14 mean independently hydrogen, hydroxymethyl or lower alkyl group, Z means S, O or NH; A means valency bond, --CH.dbd.CH--, or --CH.sub.2 --CH.sub.2 --group; R.sub.1 and R.sub.2 independently means nitro, cyano, halogen, amino, carboxamido, aryl, aroyl, pyridyl, alkoxycarbonyl, acyl or one of following groups; ##STR3## wherein R.sub.6 means hydrogen or lower alkyl group, R.sub.8 means lower alkyl, R.sub.7 means cyano or COOR.sub.10, wherein R.sub.10 means hydrogen or lower alkyl or R.sub.1 and R.sub.2 together form a substituted or unsubstituted 5 or 6 membered ring which may contain 1 or 2 heteroatom N; R.sub.3, R.sub.4, and R.sub.5 mean independently hydrogen, hydroxy or lower alkyl group; Y means N or CH. The compounds may be used in the treatment of congestive heart failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.