2,9-dihydro-(6 or 7)-(3-oxo-2,3,4,5-tetrahydropyridazinyl)-pyrazolo [4,3-B]-1,4-benzoxazines
US5116837A · kind A · utility
3Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1990 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Dec 21, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P9/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to novel compounds, 2,9-dihydro(6 or 7)-3-oxo-2,3,4,5-tetrahydropyridazinyl)pyrazolo[4,3-b]benzoxazines. The claimed compounds are inhibitors of phosphodiesterase fraction III and have potent positive inotropic activity. These compounds are useful as cardiotonics or platelet aggregation inhibitors. This invention also pertains to compositions comprising an effective amount of the compounds, to methods for preparing the claimed compounds and to methods for treating a mammal with the compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.