Fragment-based design, synthesis, and biological evaluation of N-substituted-5-(4-isopropylthiophenol)-2-hydroxynicotinamide derivatives as novel Mcl-1 inhibitors
作者:Zhichao Zhang、Chengwu Liu、Xiangqian Li、Ting Song、Zhiyong Wu、Xiaomeng Liang、Yan Zhao、Xiaoyun Shen、Hongbo Chen
DOI:10.1016/j.ejmech.2012.12.016
日期:2013.2
We have previously reported a nanomolar inhibitor of antiapoptotic Mcl-1 protein, 3-thiomorpholin-8-oxo-8H-acenaphtho [1,2-b] pyrrole-9-carbonitrile (S1). S1 plays its function by binding to the BH3 groove of Mcl-1. Basing on this spacial structural characteristic, we developed a novel class of Mcl-1 inhibitor using fragment-based drug discovery approach. By dissecting S1, we identified the compound
我们先前已经报道了抗凋亡的Mcl-1蛋白,3-硫吗啡啉8-氧代8H-ac [1,2-b]吡咯9-腈(S1)的纳摩尔抑制剂。S1通过结合到Mcl-1的BH3凹槽发挥其功能。基于这种空间结构特征,我们使用基于片段的药物发现方法开发了一类新型的Mcl-1抑制剂。通过解剖S1,我们鉴定出具有2-羟基吡啶核的化合物4为起始片段。在随后的分子生长中,我们使用了配体效率评估和拟合质量得分来评估片段。新型有效化合物N-苄基-5-(4-异丙基硫代苯酚)-2-羟基烟酰胺(12c),获得结合Mcl-1的IC 50值为54 nM。化合物12c显示出比S1更好的水溶性。