作者:Liandong Jing、Yanbo Tang、Zhiyan Xiao
DOI:10.1016/j.bmcl.2018.02.054
日期:2018.5
Cyclin-dependent kinases (CDKs) are promising drug targets for various human diseases, especially for cancers. Scaffold hopping strategy was applied on CAN508, a known selective CDK9 inhibitor, and a series of pyrazolo[3,4-b]pyridine compounds were synthesized and evaluated in vitro as CDK2 and CDK9 inhibitors. Most compounds exhibited moderate to potent inhibitory activities against both CDK2/cyclin
细胞周期蛋白依赖性激酶(CDK)是各种人类疾病(尤其是癌症)的有希望的药物靶标。在已知的选择性CDK9抑制剂CAN508上应用了支架跳跃策略,合成了一系列吡唑并[3,4- b ]吡啶化合物,并在体外评估为CDK2和CDK9抑制剂。大多数化合物对CDK2 / cyclin A和CDK9 / cyclin T1系统均表现出中度至强效的抑制活性。其中,化合物2e的CD 50的IC 50值为0.36μM,而CDK9的IC 50值为1.8μM。值得注意的是,支架的改变似乎导致抑制剂的选择性变化。与CAN508相比,复合2k对CDK2表现出显着的选择性(是CDK9的265倍)。对化合物2k的对接研究为进一步设计更有效和选择性的CDK2 / CDK9抑制剂提供了提示。