Design, synthesis and anticancer properties of 5-arylbenzoxepins as conformationally restricted iso combretastatin A-4 analogs
作者:Evelia Rasolofonjatovo、Olivier Provot、Abdallah Hamze、Jordi Rodrigo、Jérome Bignon、Joanna Wdzieczak-Bakala、Christine Lenoir、Déborah Desravines、Joëlle Dubois、Jean-Daniel Brion、Mouad Alami
DOI:10.1016/j.ejmech.2012.12.042
日期:2013.4
A series of novel benzoxepins 6 was designed and prepared as rigid-isoCA-4 analogs according to a convergent strategy using the coupling of N-tosylhydrazones with aryl iodides under palladium catalysis. The most potent compound 6b, having the greatest resemblance to CA-4 and isoCA-4 displayed antiproliferative activity at nanomolar concentrations against various cancer cell lines and inhibited tubulin
一系列新颖benzoxepins的6被设计并作为刚性-制备异根据使用的耦合会聚策略CA-4类似物Ñ与芳基碘化物-tosylhydrazones在钯催化下。与CA-4和iso CA-4最相似的最有效的化合物6b在纳摩尔浓度下对各种癌细胞系表现出抗增殖活性,并在微摩尔范围内抑制微管蛋白的组装。此外,苯并xepin 6b导致HCT116,K562,H1299和MDA-MB231癌细胞系在G 2中被阻滞/ M期的细胞周期,并在低浓度下强烈诱导细胞凋亡。对接研究表明,苯并二恶英6b在β-微管蛋白上的秋水仙碱结合位点采用类似于iso CA-4的取向。