在
哌啶 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以91%的产率得到O-{2,3,4,6-tetra-O-benzyl-β-D-galactopyranosyl-(1->4)-2-acetamido-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranosyl-(1->6)-[2,3,4,6-tetra-O-benzyl-β-D-galactopyranosyl-(1->3)]-2-azido-2-deoxy-α-D-galactopyranosyl}-L-serine allyl ester