Structure−Activity Relationships for Substituted Bis(acridine-4-carboxamides): A New Class of Anticancer Agents
作者:Swarna A. Gamage、Julie A. Spicer、Graham J. Atwell、Graeme J. Finlay、Bruce C. Baguley、William A. Denny
DOI:10.1021/jm980687m
日期:1999.7.1
potent bis(5-methylDACA) compound, with second substituents (Me and Cl) in the 1- or 8- position had broadly similar potencies to the 5-Me compound, indicating that, while the 1- and 8-substituents are acceptable, they add little to the enhancing effect of the 5-methyl group. All of the compounds were at least equitoxic (some up to 4-fold more cytotoxic) against the mutant Jurkat lines than in the wild-type
通过(CH2)3N(Me)(CH2)3链连接的一系列of啶取代的双(ac啶-4-羧酰胺)已通过取代的cr啶-4-羧酸的咪唑化物与N的反应制备。 N-双(3-氨基丙基)甲胺。目前正在临床试验中的这些混合拓扑异构酶I / II抑制剂N- [2-(二甲基氨基)乙基] ac啶-4-羧酰胺(DACA)的二聚体类似物在一组细胞系中显示出比相应的单体DACA类似物更强的效力包括人类Jurkat白血病的野生型(JLC)和突变型(JLA和JLD)。后者的突变体系对拓扑异构酶II靶向试剂有抗性,因为该酶的水平较低。在cr啶5位上带有小的取代基(例如Me,Cl)的类似物明显优于IC50' 对Lewis肺癌的抗药性低至2 nM,而对JLC的抗药性低至11 nM。在任何位置上较大的取代基均会导致效能稳步下降,这可能是由于DNA结合亲和力降低所致。一小部分最有效的双(5-甲基DACA)化合物的类似物,在1-或8位具有