The invention discloses a series of pyrazolopyrimidinone derivatives, which have the following chemical structure, their preparation methods and use,
It has been proved by pharmacological experiment that the said pyrazolopyrimidinone derivatives have high inhibitory activity against PDE5, and parts of them have a much stronger potency against PDE5 than against PDE6. Most of the compounds show low toxicity. The pyrazolopyrimidinone derivatives can be used in clinics for the palliative or curative treatment of symptoms or diseases relating to cardiovascular system, urinary system, especially for the palliative or curative treatment of erectile dysfunction.
本发明公开了一系列嘧唑
吡咯啉酮衍
生物,其
化学结构如下,以及它们的制备方法和用途。经过药理实验证明,所述嘧唑
吡咯啉酮衍
生物对PDE5具有高抑制活性,其中部分化合物对PDE5的抑制活性比对PDE6更强。大多数化合物显示出低毒性。这些嘧唑
吡咯啉酮衍
生物可用于临床上缓解或治疗与心血管系统、泌尿系统有关的症状或疾病,特别是用于缓解或治疗勃起功能障碍。