作者:Palakodety Radha Krishna、Kadimi Anitha、Galla Raju
DOI:10.1016/j.tet.2012.11.075
日期:2013.2
An efficient, convergent, and highly stereoselective formal synthesis of amphidinin B (1) is reported herein. In Amphidinin B both C10–C21 (4) and C1–C9 (5) fragments were derived from geraniol 6 and mono-PMB ether of 1,4-butane diol 7 in 19 and 9 steps, respectively. The key steps involved in this synthesis are Sharpless asymmetric epoxidation, Evans aldol, Julia olefination, oxa-Michael, Keck allylation
本文报道了两性霉素B(1)的有效,会聚和高度立体选择性的形式合成。在两性霉素B中,C10–C21(4)和C1–C9(5)片段分别来自香叶醇6和1,4-丁二醇7的单-PMB醚,分别以19和9的步骤衍生。合成中涉及的关键步骤是Sharpless不对称环氧化,Evans醛醇,Julia烯化,oxa-Michael,Keck烯丙基化,Mannich反应,Evans不对称烷基化和Yamaguchi酯化。