Structure Guided Design, Synthesis, and Biological Evaluation of Novel Benzosuberene Analogues as Inhibitors of Tubulin Polymerization
作者:Haichan Niu、Tracy E. Strecker、Jeni L. Gerberich、James W. Campbell、Debabrata Saha、Deboprosad Mondal、Ernest Hamel、David J. Chaplin、Ralph P. Mason、Mary Lynn Trawick、Kevin G. Pinney
DOI:10.1021/acs.jmedchem.9b00551
日期:2019.6.13
A promising design paradigm for small-molecule inhibitors of tubulin polymerization that bind to the colchicine site draws structural inspiration from the natural products colchicine and combretastatin A-4 (CA4). Our previous studies with benzocycloalkenyl and heteroaromatic ring systems yielded promising inhibitors with dihydronaphthalene and benzosuberene analogues featuring phenolic (KGP03 and KGP18)
结合秋水仙碱位点的微管蛋白聚合的小分子抑制剂的一种有前途的设计范例从天然产物秋水仙碱和康维他汀A-4(CA4)中汲取了结构灵感。我们以前对苯并环烯基和杂芳族环系统的研究产生了有前途的抑制剂,该抑制剂具有以酚类(KGP03和KGP18)和苯胺类(KGP05和KGP156)同类物为主的二氢萘和苯并亚戊烯类似物。这些分子表现出双重作用机制,既起有效的血管破坏剂(VDA)的作用,又起高度细胞毒性的抗癌剂的作用。设计了另一系列的类似物以扩展功能基团的多样性并研究区域异构体的耐受性。十个新分子是微管蛋白聚合的有效抑制剂(IC50 < 5μM),其中七个具有与CA4,KGP18和KGP03相当的高效活性。对于最有效的药物之一,在大鼠体内生长的人类前列腺肿瘤异种移植物中使用动态生物发光成像技术证实了剂量依赖性血管关闭。