Novel [1,2,4]triazolo[1,5-a]pyrimidine derivatives as potent antitubulin agents: Design, multicomponent synthesis and antiproliferative activities
作者:Fang Yang、Liang-Zhentian Yu、Peng-Cheng Diao、Xie-Er Jian、Ming-Feng Zhou、Cui-Shan Jiang、Wen-Wei You、Wei-Feng Ma、Pei-Liang Zhao
DOI:10.1016/j.bioorg.2019.103260
日期:2019.11
exhibited potent anti-tubulin activity with IC50 values of 9.90 μM, and molecular docking studies revealed the analogue occupied the colchicine-binding site of tubulin. These observations suggest that [1,2,4]triazolo[1,5-a]pyrimidines represent a new class of tubulin polymerization inhibitors and well worth further investigation aiming to generate potential anticancer agents.
作为受限制的CA-4类似物,通过有效的一锅三组分反应成功地获得了具有3,4,5-三甲氧基苯基的一系列新的[1,2,4]三唑并[1,5- a ]嘧啶系列3-(3,4,5-三甲氧基苯基)-1H-1,2,4-三唑-5-胺,1,3-二羰基化合物和醛。初步的生物学评估表明,某些目标化合物在体外对三种癌细胞显示出有效的抗肿瘤活性。其中,活性最高的类似物26抑制HeLa和A549细胞株的生长,其IC 50值分别为0.75和1.02μM,这表明与非肿瘤细胞株HEK-293(IC 50 = 29.94μM),这表明目标化合物可能具有较高的安全指数。此外,细胞周期分析表明,类似物26明显诱导HeLa细胞停滞在G2 / M期,同时该化合物可显着影响细胞形态和微管网络。此外,化合物28表现出有效的抗微管蛋白活性,IC 50值为9.90μM,分子对接研究表明,该类似物占据了微管蛋白的秋水仙碱结合位点。这些观察结果表明,[1