8-hydroxy-3,6-dioxaoctyl 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-3,6-di-O-acetyl-2-azido-2-deoxy-α-D-glucopyranoside 在
4 A molecular sieve 、
三氟化硼乙醚 作用下,
以
二氯甲烷 为溶剂,
反应 50.0h,
生成 [(2R,3S,4R,5R,6R)-5-acetamido-6-[2-[2-[2-[(2S,3R,4R,5S,6R)-3-acetamido-4-acetyloxy-6-(acetyloxymethyl)-5-[(2S,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyoxan-2-yl]oxyethoxy]ethoxy]ethoxy]-4-acetyloxy-3-[(2S,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyoxan-2-yl]methyl acetate