p-methoxyphenyl 2,3,6-tri-O-benzyl-β-D-galactopyranoside 、
3,4,6-tri-O-acetyl-2-azido-2-deoxy-α-D-galactopyranosyltrichloroacetimidate 在
perchloric acid supported over silica 作用下,
以
乙醚 、
二氯甲烷 为溶剂,
反应 1.0h,
以64%的产率得到p-methoxyphenyl (2-O-benzyl-4,6-O-benzylidene-α-D-galactopyranosyl)-(1->3)-4,6-O-benzylidene-2-deoxy-2-N-phthalimido-β-D-glucopyranoside