作者:Shouyun Yu、Xianhua Pan、Dawei Ma
DOI:10.1002/chem.200600383
日期:2006.8.25
Halipeptins A-D (1 a-d) are a family of natural cyclic depsipeptides isolated from marine sponges. Total syntheses of these four compounds are detailed in this report. The key elements in this synthesis include the elaboration of the polysubstituted decanoic acid parts by two asymmetric aldol reactions, assembly of the N-methyl-delta-hydroxyisoleucine residue by using either aza-Claisen rearrangement
Halipeptins AD(1 ad)是从海洋海绵中分离出来的一类天然环状二肽。该报告详细介绍了这四种化合物的总合成。该合成中的关键元素包括通过两个不对称的羟醛缩合反应精制多取代的癸酸部分,使用aza-Claisen重排或天冬氨酸的甲基化作为关键步骤组装N-甲基-δ-羟基异亮氨酸残基以及进行大环化在多取代的癸酸丙氨酸位点。