作者:Gangavaram V. M. Sharma、Post Sai Reddy
DOI:10.1002/ejoc.201101603
日期:2012.4
The total synthesis of macrosphelide M is described. The key steps include the preparation of the acid and alcohol fragments from diacetone glucose and (S)-malic acid, respectively, followed by Yamaguchi esterification and macrocyclization of the tris-olefin by ring-closing metathesis. Finally, one-pot deprotection of the PMB and TBS groups with TiCl4 results in the target. The C-3/C-4 stereocenters
描述了 macrosphelide M 的全合成。关键步骤包括分别从双丙酮葡萄糖和 (S)-苹果酸制备酸和醇片段,然后通过闭环复分解对三烯烃进行山口酯化和大环化。最后,用 TiCl4 对 PMB 和 TBS 基团进行一锅法脱保护,得到目标。双丙酮葡萄糖的 C-3/C-4 立体中心用于引入四个立体中心,而第五个立体中心由 (S)-苹果酸实现。