Rational Design, Synthesis, and Evaluation of Key Analogues of CC-1065 and the Duocarmycins
作者:Mark S. Tichenor、Karen S. MacMillan、James S. Stover、Scott E. Wolkenberg、Maria G. Pavani、Lorenzo Zanella、Abdel N. Zaid、Gianpiero Spalluto、Thomas J. Rayl、Inkyu Hwang、Pier Giovanni Baraldi、Dale L. Boger
DOI:10.1021/ja073989z
日期:2007.11.1
be as potent as or slightly more potent than the natural product duocarmycin SA (DSA-TMI, IC50 = 5 vs 8 pM), and MeCTI-PDE2 proved to be 3-fold more potent than the natural product CC-1065 (MeCPI-PDE2, IC50 = 7 vs 20 pM). Both exhibited efficiencies of DNA alkylation that correlate with this enhanced potency without impacting the intrinsic selectivity characteristic of this class of antitumor agents
设计、合成和评估 CC-1065 的可预测更有效的类似物,需要替换烷基化亚基中的单个骨架原子,并基于从化学物质之间的基本抛物线关系中出现的设计原则进行。反应性和细胞毒性。与预测一致,7-甲基-1,2,8,8a-四氢环丙[c]噻吩并[3,2-e]吲哚-4-酮(MeCTI)烷基化亚基及其异构体6-甲基-1,2,发现 8,8a-四氢环丙 [c] 噻吩并 [2,3-e]indol-4-one (iso-MeCTI) 比 CC-1065 中发现的 MeCPI 烷基化亚基稳定 5-6 倍,并且更稳定甚至比在 duocarmycin SA 中发现的 DSA 烷基化亚基还要好,使其处于此类抗肿瘤药物的最佳平衡稳定性和反应性点。它们与天然产物的关键类似物的结合提供了超过 MeCPI 衍生物效力的衍生物(3-10 倍),匹配或略微超过相应 DSA 衍生物的效力,与基于抛物线关系的预测一致. 其中值得注意的是,MeCTI-TMI