Synthesis and enzymic activity of 6-carbethoxy- and 6-ethoxy-3,7-disubstituted pyrazolo[1,5-a]pyrimidines and related derivatives as adenosine cyclic 3',5'-phosphate phosphodiesterase inhibitors
作者:Robert H. Springer、M. B. Scholten、Darrell E. O'Brien、Thomas Novinson、Jon P. Miller、Roland K. Robins
DOI:10.1021/jm00345a009
日期:1982.3
3,7-disubstituted 6-carbethoxypyrazolo [1,5-a] pyrimidines and 3,7-disubstituted 6-ethoxypyrazolo-[1,5-a]pyrimidines have been prepared and evaluated as adenosine cyclic 3',5'-phosphate (cAMP) phosphodiesterase (PDE) inhibitors vs. the low Km enzyme isolated from beef heart, rabbit lung, and kidney preparations. The results were found to be between 0.5 to 13 times as potent as theophylline as inhibitors
已经制备了许多3,7-二取代的6-碳乙氧基吡唑并[1,5-a]嘧啶和3,7-二取代的6-乙氧基吡唑并[1,5-a]嘧啶,并将其评估为腺苷环3',5'。 -磷酸(cAMP)磷酸二酯酶(PDE)抑制剂与从牛肉心,兔肺和肾脏制剂中分离的低Km酶相比。根据组织来源,发现结果是茶碱的功效是PDE抑制剂的茶碱的0.5至13倍。这些PDE抑制剂中的许多在不同的动物系统中均表现出显着的生理作用,这表明应该有可能在各种组织中获得选择性的PDE抑制。发现这些杂环中的几种在体外抑制ADP诱导的血小板聚集方面优于腺苷。