(R)-4-{(3aS,4R,6R,6aR)-6-[(tert-butyldimethylsilyloxy)methyl]-2,2-dimethyltetrahydro-3aH-[1,3]dioxolo[4,5-c]pyrrol-4-yl}butan-2-ol 在
甲基磺酰氯 、
三乙胺 作用下,
以
二氯甲烷 为溶剂,
以83%的产率得到(3aR,4R,6S,8aR,8bS)-4-[(tert-butyldimethylsilyloxy)methyl]-2,2,6-trimethylhexahydro-3aH-[1,3]dioxolo[4,5-a]pyrrolizine