Synthesis and biological evaluation of novel 4,5-disubstituted 2H-1,2,3-triazoles as cis-constrained analogues of combretastatin A-4
作者:Nikhil R. Madadi、Narsimha R. Penthala、Kevin Howk、Amit Ketkar、Robert L. Eoff、Michael J. Borrelli、Peter A. Crooks
DOI:10.1016/j.ejmech.2015.08.041
日期:2015.10
series of combretastatin A-4 (CA-4) analogues have been prepared from (Z)-substituted diarylacrylonitriles (1a-1p) obtained in a two-step synthesis from appropriate arylaldehydes and acrylonitriles. The resulting 4,5-disubstituted 2H-1,2,3-triazoles were evaluated for their anti-cancer activities against a panel of 60 human cancer cell lines. The diarylacrylonitrile analogue 2l exhibited the most potent
已经从(Z)-取代的二芳基丙烯腈(1a-1p)制备了一系列康维他汀A-4(CA-4)类似物,该两步合成是从适当的芳醛和丙烯腈进行两步合成而获得的。评价所得的4,5-二取代的2 H -1,2,3-三唑对一组60种人类癌细胞系的抗癌活性。二芳基丙烯腈类似物2l在筛选研究中表现出最有效的抗癌活性,针对人类癌细胞组中几乎所有细胞系的GI 50值<10 nM,针对癌细胞SF-的TGI值<10 nM。 539,MDA-MB-435,OVCAR-3和A498。此外,化合物的计算机对接研究为了使这些化合物的抗癌特性合理化,在微管蛋白的活性位点内进行了2l,2e和2h。从计算机研究中,预测化合物2e与微管蛋白上的秋水仙碱结合位点相比,与化合物2l和2h具有更好的亲和力。还通过针对9LSF大鼠神经胶质瘤细胞的集落形成测定法评估了类似物2e的抗癌活性,并提供了7.5nM的LD 50。进行了使用类似物2e的细胞周