Phosphodiesterase inhibitors
US5091431A · kind A · utility
42Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1990 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Jul 18, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D473/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds having an optionally-substituted purine derivative portion and a carbobicyclic or heterobicyclic portion, which compounds are useful as phosphodiesterase inhibitors, are disclosed. Also disclosed are intermediates, methods for making the inhibitors, pharmaceutical compositions and methods for treating hypertension using the compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.