作者:J. S. Yadav、Goreti Rajendar
DOI:10.1002/ejoc.201100888
日期:2011.11
Two aliphatic polyketide natural products, polyrhacitides A and B, have been synthesized in a concise and highly stereoselective manner. The synthesis involved an auxiliary-based acetate aldol reaction to generate the initial stereogenic center and an iterative Wittig reaction, intramolecular oxa-Michael addition, and chelation-controlled reduction reaction as the key steps to generate additional stereocenters
两种脂肪族聚酮化合物天然产物 polyrhacitides A 和 B,已以简洁且高度立体选择性的方式合成。该合成涉及基于辅助的乙酸醛醇反应以生成初始立体中心和迭代 Wittig 反应、分子内氧杂-迈克尔加成和螯合控制的还原反应作为生成额外立体中心的关键步骤。一锅酸介导的全局脱保护和环化反应形成最终的双环内酯核心。