Phosphodiesterase 4 inhibitors
US6699890B2 · kind B2 · utility
6Cited by
36References
75Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2002 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Jan 22, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2602/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
PDE4 inhibition is achieved by novel compounds, e.g., N-substituted aniline and diphenylamine analogs. The compounds of the present invention are of Formula I: wherein R1, R2 , R3 and R4 are as defined herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.