Pyrazolopyridine-4-yl pyridazinone derivatives and addition salts thereof, and PDE inhibitors comprising the same derivatives or salts as active ingredient
申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:US07763617B2
公开(公告)日:2010-07-27
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).
小说嘧唑吡啶-4-基吡啶酮衍生物作为磷酸二酯酶抑制剂,并且是在制药产品中使用的有用化合物。具体而言,本发明的化合物是由以下一般式(1)表示的嘧唑吡啶-4-基吡啶酮衍生物:(例子: 6-(2-乙基-7-甲氧基嘧唑[1,5-a]吡啶-4-基)-5-甲基-4,5-二氢-3(2H)-吡啶酮)。