Discovery and optimization of 3,4,5-trimethoxyphenyl substituted triazolylthioacetamides as potent tubulin polymerization inhibitors
作者:Fang Yang、Cai-Ping He、Peng-Cheng Diao、Kwon Ho Hong、Jin-Jun Rao、Pei-Liang Zhao
DOI:10.1016/j.bmcl.2018.11.024
日期:2019.1
synthesized, and evaluated for antiproliferative activities and inhibition of tubulin polymerization. The most promising compounds 8b and 8j demonstrated more significant antiproliferative activities against MCF-7, HeLa, and HT-29 cell lines than our lead compound 6. Moreover, analogues 8f, 8j, and 8o manifested more potent antiproliferative activities against HeLa cell line with IC50 values of 0.04
根据我们以前的研究,合成了三个具有3,4,5-三甲氧基苯基部分的新的三唑基硫代乙酰胺系列,并评估了其抗增殖活性和对微管蛋白聚合的抑制作用。与我们的先导化合物6相比,最有希望的化合物8b和8j对MCF-7,HeLa和HT-29细胞系表现出更重要的抗增殖活性。此外,类似物8f,8j和8o表现出对HeLa细胞系更有效的抗增殖活性,IC 50值分别为0.04、0.05和0.16μM,与化合物相比,活性提高了100倍,82倍和25倍6。此外,发现代表性化合物8j通过浓度依赖的方式在HeLa细胞系的G 2 / M期诱导明显的细胞周期停滞。同时,化合物8b表现出最有效的微管蛋白聚合抑制活性,IC 50值为5.9μM,几乎与CA-4的活性相同(IC 50 = 4.2μM)。另外,分子对接分析表明8b在微管蛋白的秋水仙碱结合位点形成稳定的相互作用。