作者:Mark Barvian、Diane H. Boschelli、Jennifer Cossrow、Ellen Dobrusin、Ali Fattaey、Alex Fritsch、David Fry、Patricia Harvey、Paul Keller、Michelle Garrett、Frances La、Wilbur Leopold、Dennis McNamara、Maire Quin、Susanne Trumpp-Kallmeyer、Peter Toogood、Zhipei Wu、Erli Zhang
DOI:10.1021/jm000271k
日期:2000.11.1
The identification of 8-ethyl-2-phenylamino-8H-pyrido[2, 3-d]pyrimidin-7-one (1) as an inhibitor of Cdk4 led to the initiation of a program to evaluate related pyrido[2, 3-d]pyrimidin-7-ones for inhibition of cyclin-dependent kinases (Cdks). Analysis of more than 60 analogues has identified some clear SAR trends that may be exploited in the design of more potent Cdk inhibitors. The most potent Cdk4
鉴定为Cdk4抑制剂的8-乙基-2-苯基氨基-8H-吡啶并[2,3-d]嘧啶-7-一(1)引发了评估相关吡啶并[2,3- d]嘧啶-7-抑制细胞周期蛋白依赖性激酶(Cdks)的化合物。对60多个类似物的分析已经确定了一些明显的SAR趋势,可在设计更有效的Cdk抑制剂时加以利用。本研究中报告的最有效的Cdk4抑制剂以IC(50)= 0.004 microM([ATP] = 25 microM)抑制Cdk4。对与相关激酶Cdk2结合的代表性化合物的X射线晶体学分析表明,它们占据了ATP结合位点。一些化合物在Cdk之间表现出适度的选择性,而Cdk4选择性抑制剂在细胞分裂周期的G(1)相中阻断pRb(+)细胞。