Bisindolylmaleimides Linked to DNA Minor Groove Binding Lexitropsins: Synthesis, Inhibitory Activity against Topoisomerase I, and Biological Evaluation
作者:Guojian Xie、Rajan Gupta、Kevin Atchison、J. William Lown
DOI:10.1021/jm950465d
日期:1996.1.1
The synthesis, characterization, inhibitory activity against topoisomerase I, and biological evaluation of a series of oligopeptide-substituted bisindolylmaleimides 7-12 are described. Compounds 7-9, which contain a basic C-terminus function such as (dimethylamino)propyl and bind to DNA with C(50) values of 200, 160, and 135 microM, respectively, exhibited inhibition of topoisomerase I in a concentration
描述了合成,表征,对拓扑异构酶I的抑制活性以及一系列寡肽取代的双吲哚基马来酰亚胺7-12的生物学评估。化合物7-9含有基本的C末端功能,例如(二甲氨基)丙基,并与C(50)值分别为200、160和135 microM的DNA结合,以浓度依赖的方式抑制了拓扑异构酶I 。同样,在<或= 100 microM浓度下观察到的拓扑异构酶I抑制的相对顺序为9> 8> 7,对应于寡肽部分中吡咯单元数量的增加。含有静电中性部分(例如甲酯)的化合物10-12不会与DNA模板结合,也不会抑制拓扑异构酶I。但是,这些化合物的细胞毒性活性为1。