Studies directed towards the total synthesis of narbonolide: stereoselective synthesis of the C1–C15 chain
作者:Jhillu S. Yadav、Aala Kavita、Kovvuri V. Raghavendra Rao、Debendra K. Mohapatra
DOI:10.1016/j.tetlet.2013.04.023
日期:2013.6
A stereoselective synthesis of the C1–C15 chain of narbonolide, a 14-membered macrolactone belonging to the pikromycin family of antibiotics is described. The key steps involved in this synthesis are desymmetrization of bicyclic olefin with Brown’s asymmetric hydroboration, Evans aldol reaction, Takai olefination and Yamaguchi esterification to yield the corresponding ester.
描述了那波内酯C1–C15链的立体选择性合成,那波内酯是一种属于吡科霉素抗生素家族的14元大内酯。合成中涉及的关键步骤是用布朗氏不对称硼氢化反应对双环烯烃进行不对称化,Evans aldol反应,Takai烯烃化反应和Yamaguchi酯化反应以生成相应的酯。