乙酸酐 、
8-methoxycarbonyloctyl 2-acetamido-6-O-benzyloxymethyl-2-deoxy-4-O-<3,4,6-tri-O-benzyl-2-O-(2,3,4-tri-O-benzyl-α-L-fucopyranosyl)-β-D-galactopyranosyl>-β-D-glucopyranoside 以
吡啶 为溶剂,
以93%的产率得到8-methoxycarbonyloctyl 2-acetamido-3-O-acetyl-6-O-benzyloxymethyl-2-deoxy-4-O-<3,4,6-tri-O-benzyl-2-O-(2,3,4-tri-O-benzyl-α-L-fucopyranosyl)-β-D-galactopyranosyl>-β-D-glucopyranoside