This invention relates to a series of pyrazolopyrimidinone derivatives, having an excellent inhibiting activity against cyclic guanosine 3',5'- monophosphate specific phosphodiesterase (cGMP specific PDE; PDE V), process for their preparation, intermediates in their preparation, their uses as therapeutic agents, and pharmaceutical compositions containing them.
本发明涉及一系列
吡唑嘧啶酮衍
生物,具有优异的抑制环
磷鸟苷3',5'-单
磷酸特异性
磷酸二酯酶(cGMP特异性PDE; PDE V)活性,其制备方法、制备中间体、作为治疗剂的用途以及含有它们的药物组合物。