6-substituted pyrazolo [3,4-d] pyrimidin-4-ones useful as cyclin dependent kinase inhibitors
申请人:DuPont Pharmaceuticals Company
公开号:US06531477B1
公开(公告)日:2003-03-11
The present invention relates to the synthesis of a novel class of pyrazolo[3,4-d]pyrimidin-4-ones of formula (I), alternatively represented by the tautomer (II):
that are potent inhibitors of the class of enzymes known as cyclin dependent kinases, which relate to the catalytic subunits cyclin dependent kinase 1-8 and their regulatory subunits know as cyclins A-H, K, N, and T.
This invention also provides a novel method of treating cancer or other proliferative diseases by administering a therapeutically effective amount of one of these compounds or a pharmaceutically acceptable salt form thereof. Alternatively, one can treat cancer or other proliferative diseases by administering a therapeutically effective combination of one of the compounds of the present invention and one or more other known anti-cancer or anti-proliferative agents.
本发明涉及合成一种新型吡唑并[3,4-d]嘧啶-4-酮类化合物,其化学式为(I),或其互变异构体(II),这些化合物是强效的细胞周期蛋白依赖性激酶抑制剂,与催化亚基细胞周期蛋白依赖性激酶1-8及其调节亚基细胞周期蛋白A-H,K,N和T有关。本发明还提供了一种治疗癌症或其他增生性疾病的新方法,通过给予这些化合物或其药学上可接受的盐形式的治疗有效剂量。或者,可以通过给予本发明化合物之一和一种或多种其他已知的抗癌或抗增生剂的治疗有效组合来治疗癌症或其他增生性疾病。