Discovering potent inhibitors against c-Met kinase: molecular design, organic synthesis and bioassay
作者:Zhongjie Liang、Xiao Ding、Jing Ai、Xiangqian Kong、Limin Chen、Liang Chen、Cheng Luo、Meiyu Geng、Hong Liu、Kaixian Chen、Hualiang Jiang
DOI:10.1039/c1ob06186k
日期:——
A substructure similarity search against the SPECS database and chemical synthesis methods were performed to obtain a series of pyrazolidine-3,5-dione derivatives. Through the enzyme-based assay against c-Met kinase, 4 compounds (1c, 1e, 1m and 1o) showed potential inhibitory activity, with IC50 values mostly less than 10 μM. Based on the structure–activity relationship (SAR) and binding mode analysis
受体酪氨酸激酶c-Met是当今治疗癌症的诱人靶标。小分子抑制剂的发现在c-Met激酶途径的阻断中特别有意义。在这里,我们从化合物1a开始研究,化合物1a是一种新型的c-Met激酶抑制剂。针对SPECS数据库的子结构相似性搜索和化学合成方法,获得了一系列吡唑烷-3,5-二酮衍生物。通过针对c-Met激酶的基于酶的测定,四种化合物(1c,1e,1m和1o)显示出潜在的抑制活性,IC 50值通常小于10μM。基于结构-活性关系(SAR)和结合模式分析,LD1.0程序设计了一个有针对性的组合库。考虑到ADMET的性质和可合成性,成功合成了七个候选化合物(5a–g)。最有效的化合物5b(IC 50 = 0.46μM)的活性是铅1a的20倍。综上所述,我们的发现确定吡唑烷-3,5-二酮衍生物是抗c-Met激酶的有效抑制剂,并证明了该策略在开发抗c-Met激酶的小分子中的有效性。