Structure based drug design and in vitro metabolism study: Discovery of N-(4-methylthiophenyl)-N,2-dimethyl-cyclopenta[d]pyrimidine as a potent microtubule targeting agent
作者:Weiguo Xiang、Shruti Choudhary、Ernest Hamel、Susan L. Mooberry、Aleem Gangjee
DOI:10.1016/j.bmc.2018.04.010
日期:2018.5
We report a series of tubulin targeting agents, some of which demonstrate potent antiproliferative activities. These analogs were designed to optimize the antiproliferative activity of 1 by varying the heteroatom substituent at the 4'-position, the basicity of the 4-position amino moiety, and conformational restriction. The potential metabolites of the active compounds were also synthesized. Some compounds
我们报告了一系列的微管蛋白靶向剂,其中一些表现出有效的抗增殖活性。这些类似物的设计旨在通过改变4'-位的杂原子取代基,4-位氨基部分的碱性和构象限制条件来优化1的抗增殖活性。还合成了活性化合物的潜在代谢产物。一些化合物在MDA-MB-435黑色素瘤细胞中显示出抗增殖作用的一位数纳摩尔IC50值。特别是,在MDA-MB-435细胞中,S-甲基类似物3比1更有效(IC50 = 4.6 nM)。与人肝微粒体一起孵育3,表明3的S-甲基部分的主要代谢产物是甲基亚磺酰基,与类似物5一样。该代谢产物在MDA-MB-435细胞中与先导化合物1等价(IC50 = 7。9 nM)。确定分子模型和静电表面积以解释类似物的活性。大多数有效的化合物克服了多种耐药性机制,化合物3作为进一步SAR和临床前开发的先导化合物而出现。