Discovery of a highly potent, selective and novel CDK9 inhibitor as an anticancer drug candidate
作者:Yongtao Li、Qingxiang Guo、Chao Zhang、Zhi Huang、Tianqi Wang、Xin Wang、Xiang Wang、Guangwei Xu、Yanhua Liu、Shengyong Yang、Yan Fan、Rong Xiang
DOI:10.1016/j.bmcl.2017.06.041
日期:2017.8
A series of novel hybrid structure derivatives, containing both LEE011 and Cabozantinib pharmacophore, were designed, synthesized and evaluated. Surprisingly, a compound 4d was discovered that highly exhibited effective and selective activity of CDK9 inhibition with IC50 = 12 nM. It effectively induced apoptosis in breast and lung cancer cell lines at nanomolar level. Molecular docking of 4d to ATP binding site of CDK9 kinase demonstrated a new hydrogen bonding between F atom of 4-(3-fluorobenzyloxy) group and ASN116 residue, compared with the positive control, LEE011. The compound 4d could block the cell cycle both in G0/G1 and G2/M phase to prevent the proliferation and differentiation of cancer cells. Mice bared-breast cancer treated with compound 4d showed significant suppression of cancer with low toxicity. Taken together, this novel compound 4d could be a promising drug candidate for clinical application. (C) 2017 Elsevier Ltd. All rights reserved.