2-(2,2,2-trichloroethoxycarbonylamino)-2,4-dideoxy-4-fluoro-3,6-di-O-acetyl-β-D-glucopyranosyl trichloroacetimidate 、
苄基2-乙酰氨基-2-脱氧-3-O-(2,3,4,6-四-O-乙酰基己糖吡喃糖苷)吡喃己糖苷 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
以95%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]-3-O-[2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl]-2-acetamido-2-deoxy-α-D-galactopyranoside