3-Substituted 2-Phenylimidazo[2,1-b]benzothiazoles: Synthesis, Anticancer Activity, and Inhibition of Tubulin Polymerization
作者:Ahmed Kamal、Farheen Sultana、M. Janaki Ramaiah、Y. V. V. Srikanth、A. Viswanath、Chandan Kishor、Pranjal Sharma、S. N. C. V. L. Pushpavalli、Anthony Addlagatta、Manika Pal-Bhadra
DOI:10.1002/cmdc.201100511
日期:2012.2.6
2‐phenylimidazo[2,1‐b]benzothiazoles (3 a–h) were synthesized by C‐arylation of 2‐arylimidazo[2,1‐b]benzothiazoles using palladium acetate as catalyst, and the resulting compounds were evaluated for their anticancer activity. Compounds 3 a, 3 e, and 3 h exhibited good antiproliferative activity, with GI50 values in the range of 0.19–83.1 μM. Compound 3 h showed potent anticancer efficacy against 60 human
以乙酸钯为催化剂,通过2-芳基咪唑并[2,1– b ]苯并噻唑的C-芳基化反应合成了一系列新的3-取代的2-苯基咪唑并[2,1– b ]苯并噻唑(3 a – h)。评价所得化合物的抗癌活性。化合物3,图3e,和3小时显示出良好的抗增殖活性,与GI 50个中的0.19-83.1μ范围内的值中号。化合物3小时显示出对60个人癌症细胞系有效的抗癌功效,平均GI 50 μ的0.88值中号。该化合物还诱导细胞周期阻滞在G 2 / M期并抑制微管蛋白聚合,随后激活caspase-3和凋亡。高通量微管蛋白聚合分析表明,化合物3 h的抑制水平与康维他汀A-4相似。分子建模研究为化合物3a,3e和3h与微管蛋白的秋水仙碱结合口袋的良好结合提供了分子基础。