Pyrazolo[3,4-b]pyridine compounds, and their use as PDE4 inhibitors
US7465743B2 · kind B2 · utility
1Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Oct 24, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a compound of formula (I) or a salt thereof:wherein: R1 is Et, n-Pr, i-Pr, C2fluoroalkyl, or —CH2CH2OH; wherein R3a is methyl or ethyl; R3b is H, methyl or ethyl; R3c is H, methyl or ethyl, R3d is H, methyl or ethyl, and R3e is H or methyl, These compounds are PDE4 inhibitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.