Synthesis, biological evaluation, and structure–activity relationships of tri- and tetrasubstituted olefins related to isocombretastatin A-4 as new tubulin inhibitors
作者:Jessy Aziz、Etienne Brachet、Abdallah Hamze、Jean-François Peyrat、Guillaume Bernadat、Estelle Morvan、Jérôme Bignon、Joanna Wdzieczak-Bakala、Déborah Desravines、Joelle Dubois、Marie Tueni、Ahmad Yassine、Jean-Daniel Brion、Mouad Alami
DOI:10.1039/c2ob26253c
日期:——
inhibitory activity as well as for cytotoxic activity. The most potent compounds are 1,1-diaryl-2-methoxyethylenes 4b, 4d and 4e having a trisubstituted double bond. They exhibited good antiproliferative activity against various human cancer cell lines (GI50 = 8–80 nM). Compounds 4b and 4e strongly inhibited tubulin polymerization with IC50 values of 2 and 3 μM, respectively, and induced cell cycle arrest
描述了与一系列1,1-二芳基乙烯微管蛋白阻聚剂3和4相关的合成和构效关系。制备这些化合物的关键步骤涉及N-芳基磺酰基hydr与芳基卤化物的钯催化偶联,从而使与异combretastatin A-4(isoCA-4)有关的三和四取代的1,1-二芳基烯烃3和4灵活且收敛地进入。已经评估了这些化合物的微管蛋白聚合抑制活性以及细胞毒性活性。最有效的化合物是1,1-二芳基-2-甲氧基乙烯4b,4d和4e具有三取代的双键。它们对多种人类癌细胞系表现出良好的抗增殖活性(GI 50 = 8–80 nM)。化合物4b和4e分别以2和3μM的IC 50值强烈抑制微管蛋白聚合,并在K562细胞系的G 2 / M期诱导细胞周期停滞。在微管蛋白秋水仙碱结合位点的对接研究可以鉴定最可能与这些抑制剂相互作用的残基,并解释其有效的抗微管蛋白活性。