2-O-acetyl-3-O-allyl-4,6-di-O-benzyl-α-D-glucopyranosyl trichloroacetimidate 、
benzyl 2-O-acetyl-4,6-di-O-benzyl-β-D-glucopyranosyl-(1→3)-2-O-acetyl-4,6-di-O-benzyl-β-D-glucopyranoside 在
三乙基硅基三氟甲磺酸酯 作用下,
以
二氯甲烷 为溶剂,
反应 0.83h,
以63%的产率得到benzyl 2-O-acetyl-3-O-allyl-4,6-di-O-benzyl-β-D-glucopyranosyl-(1-->)-2-O-acetyl-4,6-di-O-benzyl-β-D-glucopyranosyl-(1-->)-2-O-acetyl-4,6-di-O-benzyl-β-D-glucopyranoside