3-O-<2-acetamido-4,6-di-O-acetyl-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-β-D-glucopyranosyl>-1,2,4,6-tetra-O-acetyl-α-D-galactopyranose 在
氢溴酸 作用下,
以
二氯甲烷 为溶剂,
反应 1.5h,
以85%的产率得到O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1->3)-O-(2-acetamido-4,6-di-O-acetyl-2-deoxy-β-D-glucopyranosyl)-(1->3)-2,4,6-tri-O-acetyl-α-D-galactopyranosyl bromide