ethyl 2-acetamido-4,6-di-O-benzoyl-2,3-N,O-carbonyl-2-deoxy-1-thio-β-D-glucopyranoside 、
p-nitrophenyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->3)-2-azido-2-deoxy-α-D-galactopyranoside 在
2,6-二叔丁基-4-甲基吡啶 、
DMTST 作用下,
以
二氯甲烷 为溶剂,
反应 1.33h,
以64%的产率得到p-nitrophenyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1->3)-2-acetamido-4,6-di-O-benzoyl-2,3-N,O-carbonyl-2-deoxy-β-D-glucopyranosyl-(1->6)-2-azido-2-deoxy-α-D-galactopyranoside