乙酸酐 、
在
四氯化钛 、
锌 作用下,
生成
Acetic acid (4S,5R,6R,6aS,10aR)-4-hydroxy-3-isopropyl-6,9,10a-trimethyl-1,2,4,5,6,6a,7,8,10,10a-decahydro-dicyclopenta[a,d]cycloocten-5-yl ester 、 Acetic acid (4R,5S,6R,6aS,10aR)-4-hydroxy-3-isopropyl-6,9,10a-trimethyl-1,2,4,5,6,6a,7,8,10,10a-decahydro-dicyclopenta[a,d]cycloocten-5-yl ester