3,4,6-tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-β-D-galactopyranosyl-(1-4)-[2,3,4-tri-O-acetyl-α-D-fucopyranosyl-(1-3)]-6-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-D-glucopyranosyl-trichloroacetimidate 、
(2S,3S,4R)-3,4-di-O-benzyl-2-hexadecanamidooctadecane-3,4-diol 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 17.0h,
以33%的产率得到3,4,6-tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-β-D-galactopyranosyl-(1-4)-[2,3,4-tri-O-acetyl-α-D-fucopyranosyl-(1-3)]-6-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-β-D-glucopyranosyl-(1-1)-(2S,3S,4R)-3,4-di-O-benzyl-2-hexadecanamidooctadecane-3,4-diol