Design, synthesis and biological evaluation of benzo[cd]indol-2(1H)-ones derivatives as BRD4 inhibitors
作者:Yuxin Feng、Senhao Xiao、Yantao Chen、Hao Jiang、Na Liu、Cheng Luo、Shijie Chen、Hua Chen
DOI:10.1016/j.ejmech.2018.04.048
日期:2018.5
with benzo [cd]indol-2(1H)-one scaffold was identified as an effective BRD4 inhibitor through the AlphaScreen-based high-throughput screening and its high-resolution crystal structure with BRD4_BD1 protein. A series of 48 compounds were designed and synthesized by structural optimization on compound 1. All the compounds have been evaluated for their BRD4 inhibitory activities. The results showed that
通过基于AlphaScreen的高通量筛选及其带有BRD4_BD1蛋白的高分辨率晶体结构,将带有苯并[cd] indol-2(1H)-一个骨架的化合物1鉴定为有效的BRD4抑制剂。通过对化合物1进行结构优化,设计并合成了48种化合物。已对所有化合物的BRD4抑制活性进行了评估。结果表明,化合物23、24、28和44是最有潜力的化合物,IC50值分别为1.02μM,1.43μM,1.55μM和3.02μM。根据它们与BRD4_BD1结合的共晶体结构和蛋白质热位移分析,结合模式显示出额外的间接氢键和疏水相互作用使这四种化合物对BRD4的活性高于1。此外,化合物1 选择23和44来评估其对MLL-AF4表达的急性白血病细胞系(MV4-11),其他癌细胞系(MDA-MB-231,A549、22Rv1)和非癌细胞系的抗增殖活性(HUV-EC-C,MRC5,RPTEC)。结果表明,这些化合物对MV