Practical synthesis of a potent indolocarbazole-based, DNA topoisomerase inhibitor
作者:Atsushi Akao、Shouichi Hiraga、Takehiko Iida、Asayuki Kamatani、Masashi Kawasaki、Toshiaki Mase、Takayuki Nemoto、Nobuya Satake、Steven A Weissman、David M Tschaen、Kai Rossen、Daniel Petrillo、Robert A Reamer、R.P Volante
DOI:10.1016/s0040-4020(01)00895-x
日期:2001.10
scalable synthesis of 1 that limits the isolation of cytotoxic compounds to only that of the final product is described. The convergent process features a novel phase transfer-promoted glycosylation of aglycone core (4); subsequent hydrolysis provides anhydride (8). The hydrazine fragment (3), which is coupled with 8, is synthesized via a modification of existing procedures. The coupled product (2) is subsequently
DNA拓扑异构酶I抑制剂目前正在作为癌症化疗药物进行研究,其中吲哚并咔唑糖苷(1)已被确认为有前途的候选药物。描述了一种实用的,可扩展的1合成方法,该方法将细胞毒性化合物的分离仅限于最终产物的分离。收敛过程的特征是糖苷配基核心具有新的相转移促进的糖基化作用(4);随后水解得到酸酐(8)。通过改进现有方法合成与8偶合的肼片段(3)。随后将偶联产物(2)氢化以提供1 通过直接结晶(> 99.3 A%)具有极高的纯度。