p-methoxyphenyl 2-O-acetyl-3,4-di-O-benzyl-β-D-mannopyranosyl-(1->4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside 、 2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl trichloroacetimidate 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以100%的产率得到p-methoxyphenyl 2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl-(1->6)-2-O-acetyl-3,4-di-O-benzyl-β-D-mannopyranosyl-(1->4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside