benzyl (2S)-2-[[(2S)-4-[(2S,3R,4R,5S,6R)-3-acetamido-4,5-diacetyloxy-6-(acetyloxymethyl)oxan-2-yl]sulfanyl-2-aminobutanoyl]amino]propanoate 、
(2S)-2-[[(2S)-2-[[(2S)-1-[(2R)-3-[(2S,3R,4S,5R,6R)-3,4-diacetyloxy-6-(acetyloxymethyl)-5-[(2S,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyoxan-2-yl]sulfanyl-2-[[(2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoyl]amino]propanoyl]pyrrolidine-2-carbonyl]amino]-3-hydroxypropanoyl]amino]-3-hydroxypropanoic acid 在
benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 benzyl (2S)-2-[[(2S)-4-[(2S,3R,4R,5S,6R)-3-acetamido-4,5-diacetyloxy-6-(acetyloxymethyl)oxan-2-yl]sulfanyl-2-[[(2S)-2-[[(2S)-2-[[(2S)-1-[(2R)-3-[(2S,3R,4S,5R,6R)-3,4-diacetyloxy-6-(acetyloxymethyl)-5-[(2S,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxyoxan-2-yl]sulfanyl-2-[[(2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoyl]amino]propanoyl]pyrrolidine-2-carbonyl]amino]-3-hydroxypropanoyl]amino]-3-hydroxypropanoyl]amino]butanoyl]amino]propanoate