Phosphodiesterase inhibitors having an optionally substituted purine derivative portion and a benzo- or cyclopenta-furan portion
US4971972A · kind A · utility
40Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1989 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Mar 23, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D473/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Antihypertensive phosphodiesterase inhibitors having an optionally substituted purine derivative portion and a benzo- or cyclopenta-furan derivative portion are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.