作者:Ilene Lissette Green、Jason Andre Jordan、Jeanese Christine Badenock
DOI:10.24820/ark.5550190.p010.464
日期:——
was attempted via an LDA-initiated condensation of N-carbamate indole-2-methyl ester 22 with 4-[(t-butyldimethylsilyl)oxy]benzaldehyde (14) and a late-stage Vilsmeier–Haack formylation. Difficulties with the ensuing oxidation required installation of a C-3 carboxylic acid necessitating the use of a recently reported protocol and thus a formal synthesis of the natural product was realized from 2-aminobenzyl
通过 LDA 引发的 N-氨基甲酸酯吲哚-2-甲酯 22 与 4-[(t-丁基二甲基甲硅烷基)氧基]苯甲醛 (14) 和后期 Vilsmeier-Haack 的缩合,尝试合成吲哚防晒颜料 prenostodione甲酰化。随后氧化的困难需要安装 C-3 羧酸,因此必须使用最近报道的协议,因此天然产物的正式合成是从 2-氨基苯甲醇 (17) 分九个步骤实现的。