作者:Lutz F. Tietze、Frank Haunert、Tim Feuerstein、Tobias Herzig
DOI:10.1002/ejoc.200390094
日期:2003.2
A short and efficient synthesis of seco-duocarmycin SA (3), a highly potent cytostatic agent and direct precursor of the natural product duocarmycin SA (1), has been achieved. Starting from commercially available 2-methoxy-4-nitroaniline (4) the synthetic protocol contains a Fischer indole synthesis to introduce the heterocyclic scaffold and a radical 5-exo-trig cyclization to furnish the (chloromethyl)indoline
已经实现了一种高效细胞抑制剂和天然产物 duocarmycin SA (1) 的直接前体 seco-duocarmycin SA (3) 的简短有效合成。从市售的 2-甲氧基-4-硝基苯胺 (4) 开始,合成方案包含 Fischer 吲哚合成以引入杂环支架和自由基 5-exo-trig 环化以提供(氯甲基)二氢吲哚环系统作为关键反应。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)