Isocombretastatins A: 1,1-Diarylethenes as potent inhibitors of tubulin polymerization and cytotoxic compounds
作者:Raquel Álvarez、Concepción Álvarez、Faustino Mollinedo、Beatriz G. Sierra、Manuel Medarde、Rafael Peláez
DOI:10.1016/j.bmc.2009.07.012
日期:2009.9.1
N-methyl- and N-ethyl-5-indolyl analogues of combretastatin A-4. Analogues with a 2,3,4-trimethoxyphenyl ring instead of the 3,4,5-trimethoxyphenyl ring have also been prepared. The isocombretastatins A strongly inhibit tubulin polymerization and are potent cytotoxic compounds, some of them with IC50s in the nanomolar range. This new family of tubulin inhibitors shows higher or comparable potency when compared
异combretastatins A是康美他汀A的1,1-二芳基乙烯异构体。我们合成了combrestastatin A-4,脱氧康布他汀A-4、3-氨基-脱氧康布他汀A-4(AVE-8063),萘基康布他汀A和N-甲基-和康布雷他汀A-4的N-乙基-5-吲哚基类似物。还已经制备了具有2,3,4-三甲氧基苯基环而不是3,4,5-三甲氧基苯基环的类似物。异combretastatins A强烈抑制微管蛋白聚合,并且是有效的细胞毒性化合物,其中一些具有IC 50在纳摩尔范围内。与酚他汀或康维他汀类似物相比,这个新的微管蛋白抑制剂家族显示出更高或相当的效力。这些结果表明,具有双芳基双取代的一个碳桥可以成功地替代康美他汀的两个碳桥,并且苯他汀类的羰基对于高效能并不是必不可少的。