Synthesis, Anticancer Activity, and Inhibition of Tubulin Polymerization by Conformationally Restricted Analogues of Lavendustin A
作者:Fanrong Mu、Ernest Hamel、Debbie J. Lee、Donald E. Pryor、Mark Cushman
DOI:10.1021/jm020292+
日期:2003.4.1
polymerization and usually decreased cytotoxicity in cancer cell cultures as well, indicating the importance of at least one of the phenolic hydroxyl groups. Further investigation suggested that the phenolic hydroxyl group in the salicylamide ring was required for activity, while the two phenol moieties in the hydroquinone ring could be methylated with retention of activity. Two of the lavendustin A derivatives
lavendustin A系列中的化合物已显示出抑制蛋白酪氨酸激酶(PTK)和微管蛋白聚合的作用。由于某些lavendustin A衍生物可能以类似于PTK抑制剂piceatannol的反式-二苯乙烯结构和微管蛋白阻聚剂combretastatin A-4的顺-二苯乙烯结构的形式存在,因此存在两种活性之比的可能性。薰衣草素的合成可能受构象受限类似物合成的影响。因此,一系列具有药理活性的lavendustin A片段的苄基苯胺结构被其顺式或反式-二苯乙烯取代物取代,并监测了对癌细胞培养中微管蛋白聚合和细胞毒性的抑制作用。二氢sti和1 还制备了2-二苯基炔烃同源物,并进行了生物学评估。令人惊讶的是,在薰衣草素的两个芳香环之间的桥的构象限制对生物学活性没有显着影响。另一方面,lavendustin A衍生物的三个酚羟基向其相应的甲基醚的转化始终取消了它们抑制微管蛋白聚合的能力,并且通常还降低了