An Investigation into the Cytotoxicity and Mode of Action of Some Novel <i>N</i>-Alkyl-Substituted Isatins
作者:Kara L. Vine、Julie M. Locke、Marie Ranson、Stephen G. Pyne、John B. Bremner
DOI:10.1021/jm0704189
日期:2007.10.1
studies indicated that the introduction of an aromatic ring with a one or three carbon atom linker at N1 enhanced the activity from that of the allyl, 2'-methoxyethyl, and 3'-methylbutyl N-substituted isatins. Furthermore, electron-withdrawing groups substituted at the meta or para position of the ring were favored over the ortho orientation. Of the 24 compounds screened, nine displayed sub-micromolar IC50
合成了一系列取代的N-烷基靛红,并在体外评估了它们对几种癌细胞系的细胞毒性。SAR研究表明,在N1处引入具有一个或三个碳原子接头的芳环,增强了烯丙基,2'-甲氧基乙基和3'-甲基丁基N-取代的靛红的活性。此外,在环的间位或对位取代的吸电子基团优于邻位取向。在筛选的24种化合物中,有9种显示出亚微摩尔IC50值,并且相对于所测试的任何癌细胞系,总体上显示出对白血病和淋巴瘤细胞系的更高选择性。5,7-二溴-N-(对甲基苄基)isatin(6)是活性最高的化合物,在0.49μM时抑制U937和Jurkat癌细胞系的代谢活性。