A chiarl 1,1,3-trimethylcyclohexane derivative (12), which is a potent key building block for synthesis of ent-taxane-type diterpenoids, has been prepared from d-camphor (2) through a conversion pathway which involves a novel ring enlargement reaction of a 1,1,2-trimethylcyclopentane derivative (3).
一种
1,1,3-三甲基环己烷衍
生物(12)已从d-
樟脑(2)制备而成,该衍
生物是合成ent-taxane类二萜的强效关键构建块,其制备过程涉及一个新的环扩大反应,源自
1,1,2-三甲基环戊烷衍
生物(3)。