Substituted pyrazolo[4,3-d]pyrimidines and their use as PDE-5 inhibitors
US7262192B2 · kind B2 · utility
6Cited by
13References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2004 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Aug 14, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention comprises a class of 5,7-diaminopyrazolo[4,3-d]pyrimidine compounds. These compounds are useful as phosphodiesterase type 5 inhibitors. The present invention further comprises compositions containing the compounds use of the compounds and compositions to treat hypertension and other conditions, processes for the preparation of the compounds, and intermediates used in the preparation of the compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.