2,3,4,6-tetraO-acetyl-β-D-galactopyranosyl-(1<*>3)-4-O-acetyl-2-azido-6-O-benzoyl-2-deoxy-D-galactopyranosyl 在
甲基磺酰氯 、
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 36.0h,
以85%的产率得到2,3,4,6-Tetra-O-acetyl-β-D-galactopyranosyl-(1->3)-4-O-acetyl-2-azido-6-O-benzoyl-2-deoxy-α-D-galactopyranosyl chloride