Pyrazolopyridine-4-yl pyridazinone derivatives and addition salts thereof, and PDE inhibitors comprising the same derivatives or salts as active ingredient
US7763617B2 · kind B2 · utility
9Cited by
1References
12Claims
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Key dates
| Filing date | Mar 6, 2006 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Mar 22, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel pyrazolopyridine-4-yl pyridazinone derivatives serve as phosphodiesterase inhibitors and are useful compounds for use in pharmaceutical products.Specifically, the compounds of the present invention are pyrazolopyridine-4-yl pyridazinone derivatives represented by the following general formula (1):(Example: 6-(2-ethyl-7-methoxy-pyrazolo[1,5-a]pyridine-4-yl)-5-methyl-4, 5-dihydro-3(2H)-pyridazinone).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.