Synthesis, anticancer activity, and SAR analyses of compounds containing the 5:7-fused 4,6,8-triaminoimidazo[4,5-e][1,3]diazepine ring system
作者:Min Xie、Rena G. Lapidus、Mariola Sadowska、Martin J. Edelman、Ramachandra S. Hosmane
DOI:10.1016/j.bmc.2016.03.015
日期:2016.6
relationship (SAR) studies on a 5:7-fused heterocycle (1), containing the 4,6,8-triaminoimidazo[4,5-e][1,3]diazepine ring system, whose synthesis and potent broad-spectrum anticancer activity we reported a few years ago. Our SAR efforts in this study are mainly focused on judicial attachment of substituents at N-1 and N6-positions of the heterocyclic ring. Our results suggest that there is some subtle correlation
本文描述的是我们对5:7稠合杂环(1)的有限结构-活性关系(SAR)研究,该杂环包含4,6,8-三氨基咪唑并[4,5- e ] [1,3]二氮杂pine环系统,我们在几年前报道了其合成和有效的广谱抗癌活性。我们在这项研究中的SAR努力主要集中在杂环的N-1和N 6位上取代基的合法连接上。我们的结果表明,在杂环的N-1位上连接的取代基与在杂环的N 6位上连接的取代基之间存在一些微妙的相关性。在靶蛋白上可能有一个常见的疏水结合口袋,被N-1和N 6处的取代基所占据杂环配体的-位。该口袋似乎足够大,可以容纳N 6的C-18烷基链,而在N-1处没有任何连接,或者在N 6处具有结合的C-10,在N-1处具有CH 2 Ph。在N 6处短于或长于C-10且在N-1处连接有CH 2 Ph的任何烷基链会导致生物活性降低。