Imidazo[4,5-b]pyridyl quinolone cardiac stimulants
US4898872A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1988 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Apr 21, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D471/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A series of novel heterobicyclic substituted 2-(1H)-quinolone compounds have been prepared, including the 3,4-dihydro derivatives thereof, wherein the heterobicyclic ring moiety is an optionally-substituted indolyl, phthalizinyl, benzimidazolyl, imidazopyridinyl, quinolinyl or isoquinolinyl group attached by an nitrogen or carbon atom of said group to the 6-position of the quinolone ring. The optional substituent is a C.sub.1 -C.sub.14 alkyl group located on either of the two heterobicyclic rings and/or an oxo group situated on the heterocyclic portion of said heterobicyclic ring system. These particular compounds are useful in therapy as cardiac stimulants and therefore, are of value in the treatment of various cardiac conditions. 6-{1(H)-Imidazo[4,5-b]pyridin-6-yl}-8-methyl-2-(1H)-quinolone represents a typical and preferred member compound. Methods for preparing these compounds from known starting materials are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.