methyl 2,3,4-tri-O-benzoyl-6-O-(tert-butyldiphenylsilyl)-α-D-galactopyranosyl chloride 、
methyl O-<2,3,4-tris-O-(p-phenylbenzoyl)-β-D-galactopyranosyl>-(1<*>6)-2,3,4-tri-O-benzoyl-β-D-glucpoyranoside 在
2,4,6-三甲基吡啶 、
silver trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
反应 0.33h,
以83%的产率得到methyl O-<6-O-(tert-butyldiphenylsilyl)-2,3,4-tri-O-benzoyl-β-D-galactopyranosyl>-(1<*>6)-O-<2,3,4-tris-O-(p-phenylbenzoyl)-β-D-galactopyranosyl>-(1<*>6)-2,3,4-tri-O-benzoyl-β-D-galactopyranoside