Biomimetic Total Synthesis of (−)-Penibruguieramine A Using Memory of Chirality and Dynamic Kinetic Resolution
作者:Jae Hyun Kim、Seokwoo Lee、Sanghee Kim
DOI:10.1002/anie.201504954
日期:2015.9.7
stereocontrolled total synthesis of (−)‐penibruguieramine A, a naturally occurring marine pyrrolizidine alkaloid, is described in this study for the first time. The key synthetic sequence is the biomimetic aldol reaction of the proline pentaketide amide. The principles of “memory of chirality” (MOC) and “dynamic kinetic resolution” (DKR) are applied to this reaction for the asymmetric synthesis using proline
这项研究首次描述了(-)-penibruguieramine A(一种天然存在的海洋吡咯烷核生物碱)的完全立体控制的总合成。关键的合成序列是脯氨酸戊肽酰胺的仿生醛醇缩合反应。使用脯氨酸作为唯一手性来源,该反应适用于不对称合成的“手性记忆”(MOC)和“动态动力学拆分”(DKR)原理。讨论了在质子溶剂环境中优异的立体化学结果的机械原理。