作者:Christiane Marti、Erick M. Carreira
DOI:10.1021/ja0518880
日期:2005.8.1
The total synthesis of spirotryprostatin B, a cytostatic spiro[pyrrolidine-3,3'-oxindole] alkaloid, is described. The key step of the synthetic approach consists of the application of the MgI2-mediated ring-expansion reaction of a spiro[cyclopropane-1,3'-oxindole] with an aldimine, leading to rapid assembly of the spirotryprostatin core. The route documents the installation of the prenyl side chain
描述了spirotryprostatin B,一种细胞抑制性螺[pyrrolidine-3,3'-oxindole] 生物碱的全合成。合成方法的关键步骤包括应用 MgI2 介导的螺 [环丙烷-1,3'-羟吲哚] 与醛亚胺的扩环反应,从而导致螺前列腺素核心的快速组装。该路线记录了通过 Julia-Kocieński 烯化关键醛前体安装异戊二烯侧链,这种转化最终允许类似物的轻松合成并促进结构-活性关系研究。