O-(2,3-Di-O-acetyl-4,6-O-benzylidene-β-D-galactopyranosyl)-(1->3)-2-azido-4,6-O-benzylidene-2-deoxy-α-D-galactopyranosyltrichloroacetamidate 、
Benzyl O-(6-O-benzyl-2,3-di-O-(p-methoxybenzyl)-β-D-galactopyranosyl)-(1->4)-2,3,6-tri-O-benzyl-α-D-glucopyranoside 在
tin(II) trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以44%的产率得到Benzyl O-(2,3-di-O-acetyl-4,6-O-benzylidene-β-D-galactopyranosyl)-(1->3)-(2-azido-4,6-O-benzylidene-2-deoxy-α-D-galactopyranosyl)-(1->4)-(6-O-benzyl-2,3-di-O-(p-methoxybenzyl)-β-D-galactopyranosyl)-(1->4)-2,3,6-tri-O-benzyl-α-D-glucopyranoside