Full Stereochemical Determination of Ajudazols A and B by Bioinformatics Gene Cluster Analysis and Total Synthesis of Ajudazol B by an Asymmetric Ortholithiation Strategy
作者:Sebastian Essig、Sebastian Bretzke、Rolf Müller、Dirk Menche
DOI:10.1021/ja309685n
日期:2012.11.28
chain inhibitors ajudazols A and B and the total synthesis of ajudazol B are reported. Configurational assignment was exclusively based on biosynthetic gene cluster analysis of both ketoreductase domains for hydroxyl-bearing stereocenters and one of the first predictive enoylreductase alignments for methyl-bearing stereocenters. The expedient total synthesis resulting in unambiguous proof of the predicted
报告了强效呼吸链抑制剂阿达唑 A 和 B 的立体化学测定以及阿达唑 B 的全合成。构型分配完全基于对含羟基立体中心的酮还原酶结构域和含甲基立体中心的第一个预测性烯酰还原酶比对之一的生物合成基因簇分析。通过创新的不对称正锂化策略、模块化恶唑形成和后期 Z,Z 选择性 Suzuki 偶联,对具有挑战性的异色满酮立体三联体进行了短期立体选择性方法,从而对预测的立体化学进行了明确的证明。