Phormidolides B and C, Cytotoxic Agents from the Sea: Enantioselective Synthesis of the Macrocyclic Core
作者:Adriana Lorente、Alejandro Gil、Rogelio Fernández、Carmen Cuevas、Fernando Albericio、Mercedes Álvarez
DOI:10.1002/chem.201404341
日期:2015.1.2
New cytotoxic polyketide macrolides named phormidolides B and C were isolated from a marine sponge of the Petrosiidae family collected off the coast of Pemba (Tanzania). The isolation, structure elucidation, and enantioselective synthesis of three diastereomers of the macrocyclic core is described herein. The described synthetic methodology started from 2‐deoxy‐D‐ribose or 2‐deoxy‐L‐ribose and afforded
新的细胞毒性聚酮类大环内酯类化合物称为隐吸虫B和C,是从奔巴(坦桑尼亚)沿海采集的Petrosiidae科海洋海绵中分离出来的。本文描述了大环核心的三种非对映异构体的分离,结构阐明和对映选择性合成。所描述的合成方法从2-脱氧-D-核糖或2-脱氧-L-核糖开始,提供了所需的具有高对映体纯度的大环化合物。合成的关键步骤是使用Julia-Kocienski烯烃形成Z-三取代双键。合成方法的多功能性可以通过改变起始材料或手性诱导剂来提供其他对映纯大环化合物的途径。