O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1<*>3)-O-<2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl-(1<*>6)>-2,4-di-O-acetyl-α-D-glucopyranosyl bromide 、
benzyl 2,4,6-tri-O-benzyl-β-D-glucopyranoside 在
4 A molecular sieve 、
silver trifluoromethanesulfonate 作用下,
以
1,2-二氯乙烷 为溶剂,
以72%的产率得到benzyl O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1-3)-O-<2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl-(1-6)>-O-(2,4-di-O-acetyl-β-D-glucopyranosyl)-(1-3)-2,4,6-tri-O-benzyl-β-D-glucopyranoside