1- or 2- or 7-(substituted)-3-(optionally hetero)arylamino-[1H,2H]-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione derivatives, in free, salt or prodrug form, are useful as pharmaceuticals, particularly as phosphodiesterase 1 inhibitors, useful for the treatment of diseases involving disorders of the dopamine D1 receptor intracellular pathway, such as Parkinson's disease, depression, narcolepsy and damage to cognitive function, e.g., in schizophrenia or disorders that may be ameliorated through enhanced progesterone—signaling pathway, e.g., female sexual dysfunction.
1-或2-或7-(取代)-3-(可选杂原子)芳基
氨基-[1H,2H]-
吡唑并[3,4-d]
嘧啶-4,6(5H,7H)-二酮衍
生物,以自由,盐或前药形式存在,可用作药物,特别是
磷酸二酯酶1
抑制剂,可用于治疗涉及
多巴胺D1受体细胞内通路紊乱的疾病,如帕
金森病,抑郁症,嗜睡症和认知功能损伤,例如在精神分裂症或通过增强
孕酮信号通路可能改善的疾病中,例如女性性功能障碍。