Towards the Total Synthesis of Marineosin A: Construction of the Macrocyclic Pyrrole and an Advanced, Functionalized Spiroaminal Model
作者:Leslie N. Aldrich、Cynthia B. Berry、Brittney S. Bates、Leah C. Konkol、Miranda So、Craig W. Lindsley
DOI:10.1002/ejoc.201300643
日期:2013.7
Herein, we describe the enantioselective construction of the 12-membered macrocyclic pyrrole core 4 of marineosin A in 5.1% overall yield from (S)-propylene oxide. The route features a key Stetter reaction to install a 1,4-diketone, which is then subjected to Paal-Knorr pyrrole synthesis and ring closing metathesis (RCM) to afford macrocycle 4. A divergence point in the synthetic scheme also enabled
在本文中,我们描述了海洋蛋白A的12元大环吡咯核心4的对映选择性结构,其从(S)-环氧丙烷的总产率为5.1%。该路线以关键的斯特特反应为特征,以安装1,4-二酮,然后进行Paal-Knorr吡咯合成和闭环复分解(RCM),以提供大环4。通过酸介导的羟基酮酰胺环化策略实现高度功能化的螺旋胺模型系统8。