2-[2-[(2S,3R,4R,5R,6R)-3-acetamido-4,5-diacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyethyl-acetylamino]acetic acid 在
N-甲基吗啉 、
sodium methylate 、 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
三氟乙酸 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 4.0h,
生成 2-[2-[(2S,3R,4R,5R,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyethyl-[2-[2-[(2S,3R,4R,5R,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyethyl-[2-[2-[(2S,3R,4R,5R,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyethyl-acetylamino]acetyl]amino]acetyl]amino]acetic acid