benzyl 2-acetamido-3-O-acetyl-2-deoxy-α-D-galactopyranoside 、
2-(2,2,2-trichloroethoxycarbonylamino)-2,4-dideoxy-4-fluoro-3,6-di-O-acetyl-β-D-glucopyranosyl trichloroacetimidate 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
以85%的产率得到benzyl 6-O-[2-(2,2,2-trichloroethoxycarbonylamino)-2,4-dideoxy-4-fluoro-3,6-di-O-acetyl-β-D-glucopyranosyl]-2-acetamido-2-deoxy-3-O-acetyl-α-D-galactopyranoside