氟化铯 、
5-((R)-hydroxy((4S,5R)-5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)methyl)-N,N,4-trimethyl-2-(1-(triisopropylsilyloxy)vinyl)-1H-imidazole-1-sulfonamide 、
氯化铵 在
crude product 、 silica gel 、
甲醇 、
二氯甲烷 作用下,
以
乙醇 为溶剂,
反应 1.0h,
以to provide 2-acetyl-5-((R)-hydroxy((4S,5R)-5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)methyl)-N,N,4-trimethyl-1H-imidazole-1-sulfonamide (380 mg, 94% yield) as a white foam的产率得到2-acetyl-5-((R)-hydroxy((4S,5R)-5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)methyl)-N,N,4-trimethyl-1H-imidazole-1-sulfonamide