Discovery of coumarin derivatives as potent and selective cyclin-dependent kinase 9 (CDK9) inhibitors with high antitumour activity
作者:Junyu Xu、Hongmei Li、Xinren Wang、Jianhang Huang、Shuwen Li、Chenhe Liu、Ruinan Dong、Gaoyuan Zhu、Chunqi Duan、Fei Jiang、Yanmin Zhang、Yuqin Zhu、Tianyi Zhang、Yadong Chen、Weifang Tang、Tao Lu
DOI:10.1016/j.ejmech.2020.112424
日期:2020.8
Specific inhibition of CDK9 is considered a promising strategy for developing effective anticancer therapeutics. However, most of the reported CDK9 inhibitors are still at an early stage of development and lack selectivity against other CDKs. Herein, we discovered coumarin derivative 30i as a potent CDK9 inhibitor with high selectivity (8300-fold over CDK7). Binding mode analysis illustrated that the substituent coumarin moiety is a critical group for CDK9 selectivity by occupying a flexible hinge/alpha D region, which is sterically hindered in other CDKs. Compound 30i showed excellent cellular antiproliferative activity, moderate pharmacokinetic property and low hERG inhibition. Moreover, 30i significantly induced tumour growth inhibition in a dose-dependent manner without causing an obvious loss of body weight in an MV4-11 xenograft mice model. Altogether, these results suggest that 30i may serve as a potential acute myeloid leukaemia (AML) therapeutics by selectively targeting CDK9. (C) 2020 Elsevier Masson SAS. All rights reserved.