8-methoxycarbonyloct-1-yl 2-acetamido-4-O-(2,3-di-O-benzyl-β-D-galactopyranosyl)-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranoside 在
吡啶 、
三甲基氨基磺酸 作用下,
生成 9-[(2R,3R,4R,5S,6R)-3-Acetylamino-4-benzyloxy-6-benzyloxymethyl-5-((2S,3R,4S,5S,6R)-3,4-bis-benzyloxy-5-hydroxy-6-sulfooxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-nonanoic acid methyl ester