(3aR,3a1S,4S,5a1R,8aR,10aS)-4,7-dimethyl-8-(trityloxymethyl)-2,3,3a,4,5,5a,5a1,8,8a,9,10,10a-dodecahydropyren-1(3a1H)-one 在
氯化二乙基铝 作用下,
以
正己烷 、
二氯甲烷 为溶剂,
反应 1.5h,
以34%的产率得到(3aR,3a1S,4S,5aS,5a1R,8R,8aR,10aS)-8-(hydroxymethyl)-4,7-dimethyl-2,3,3a,4,5,5a,5a1,8,8a,9,10,10a-dodecahydropyren-1(3a1H)-one