benzyl 2,3,6-tri-O-benzyl-4-O-(2,6-di-O-benzyl-β-D-galactopyranosyl)-β-D-glucopyranoside 、
methyl 5-acetamido-4,7,8,9-tetra-O-benzyl-2,3,5-trideoxy-2-fluoro-3-phenylseleno-D-erythro-α-L-gluco-nonulopyranosate 在
silver trifluoromethanesulfonate 、 tin(ll) chloride 作用下,
以
四氯化碳 为溶剂,
以20%的产率得到benzyl O-
-(2->3)-O-(2,6-di-O-benzyl-β-D-galactopyranosyl)-(1->4)-2,3,6-tri-O-benzyl-β-D-glucopyranoside