Synthetic studies on palmerolide C: synthesis of an advanced intermediate towards the revised structure of palmerolide C
作者:Ashik A. Sayyad、Khushboo Kaim、Krishna P. Kaliappan
DOI:10.1039/d0ob01140a
日期:——
stereoselective synthesis of the highly advanced intermediates towards the revised structure of palmerolide C and 10-epi-palmerolide C is described in this paper. The required key fragments C1–C6, C7–C14 and C15–C23 have been successfully assembled in a convergent manner to access the C1–C23 framework bearing all the five stereocenters present in the naturalproduct. The synthesis involves the Julia–Kocienski
本文描述了一种高度先进的中间体的立体选择性合成,用于修正棕榈内酯 C 和 10- epi -palmerolide C 的结构。所需的关键片段 C1-C6、C7-C14 和 C15-C23 已成功地以收敛的方式组装,以访问带有天然产物中存在的所有五个立体中心的 C1-C23 框架。该合成涉及 Julia-Kocienski 反应、山口酯化、Takai 烯化和区域选择性环氧化物开环作为关键步骤。所提出的路线是灵活的,也可以应用于结构相关的棕榈内酯的合成。