3-tert-butyldimethylsilyloxy-4,5-(diphenylmethylenedioxy)benzoic acid 、
O3-Methyl-1,6-anhydro-β-D-glucopyranose 在
4-二甲氨基吡啶 、
4-(dimethylamino)pyridine hydrochloride 、
N,N'-二环己基碳二亚胺 作用下,
以
二氯甲烷 为溶剂,
反应 14.0h,
以82%的产率得到[(1R,2R,3S,4R,5R)-4-[7-[tert-butyl(dimethyl)silyl]oxy-2,2-diphenyl-1,3-benzodioxole-5-carbonyl]oxy-3-methoxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 7-[tert-butyl(dimethyl)silyl]oxy-2,2-diphenyl-1,3-benzodioxole-5-carboxylate