({3-[(2R,3R,4S,5S,6R)-3,4-Diacetoxy-6-acetoxymethyl-5-((2R,3R,4S,5S,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-propylcarbamoyl}-methoxy)-acetic acid 在
sodium methylate 、 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
甲醇 、
二氯甲烷 、
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
生成 3-{2-[2-({3-[(2R,3R,4R,5R,6R)-3,4-Dihydroxy-6-hydroxymethyl-5-((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-propylcarbamoyl}-methoxy)-acetylamino]-ethoxy}-benzoic acid methyl ester