Synthesis and in vitro Evaluation of 9-Anilino-3,6-diaminoacridines Active Against a Multidrug-Resistant Strain of the Malaria Parasite Plasmodium falciparum
作者:Swarna A. Gamage、Nisana Tepsiri、Prapon Wilairat、Stanley J. Wojcik、David P. Figgitt、Raymond K. Ralph、William A. Denny
DOI:10.1021/jm00036a014
日期:1994.5
A new synthesis of 3,6-diamino-9-anilinoacridines, via reduction of the corresponding diazides, gives much higher yields than traditional methods. Within the subset of 3,6-diamino-9-anilinoacridines, there was considerable tolerance to substitution at the 1'-anilino position. In a sharp divergence with structure-activity relationships for high mammalian cell toxicity and anticancer effects, derivatives
已经制备了一系列9-苯胺基oa啶酮,并评估了它们对红细胞悬液中疟原虫恶性疟原虫的多药耐药K1株的活性。与其他取代方式相比,啶环上的3,6-二氨基取代导致较低的哺乳动物细胞细胞毒性和较高的抗寄生虫活性,从而提供具有最高体外治疗指数的化合物。通过还原相应的叠氮化物,新合成3,6-二氨基-9-苯胺基cr啶的产率比传统方法高得多。在3,6-二氨基-9-苯胺基cr啶的子集中,对1'-苯胺基位置的取代具有相当大的耐受性。在具有高哺乳动物细胞毒性和抗癌作用的构效关系方面,带有吸电子1'取代基的衍生物(例如SO2-NHR和CONHR)显示出最有效的抗疟活性(IC50值为10-20 nM)。代表性的化合物显示出是人类拓扑异构酶II的DNA链传递活性和相应寄生虫DNA脱链活性的有效抑制剂。1'-SO2NH2衍生物7n在20 microM时完全抑制了Jurkat拓扑异构酶II的链通过,并且在1 microM或以