A general strategy for the formal synthesis of (−)-trans-kumausyne and total synthesis of (5R)-Hagen’s gland lactones from diacetone-d-glucose
作者:Hari Babu Mereyala、Rajendrakumar Reddy Gadikota
DOI:10.1016/s0957-4166(99)00575-3
日期:2000.2
A general strategy for the formal synthesis of (−)-trans-kumausyne 1 via the bicyclic lactone (3aR,5R,6aR)-4 and total synthesis of (5R)-Hagen’s gland lactones 2 and 3 via bicyclic lactone (3aR,5S,6aR)-5 starting from diacetone-d-glucose 6 is described. Syntheses of 4 and 5 were achieved by Wittig olefination–lactonization–Michael addition of the corresponding lactols 16 and 17, respectively.
- ( - )为正式合成的一般策略反-kumausyne 1经由二环内酯(3A - [R,5 - [R,6α - [R ) - 4和(5全合成- [R)-Hagen腺内酯2和3经由二环内酯描述了从双丙酮-d-葡萄糖6开始的(3a R,5 S,6a R)-5。4和5的合成是通过Wittig烯烃化-内酯化-迈克尔加成相应的内酯16和17来实现的, 分别。