[(2R,3R,4R,5S,6S)-3,4,5-triacetyloxy-6-[(2R)-1-amino-3-[3-[[(2R)-3-[3-(9H-fluoren-9-ylmethoxycarbonylamino)propanoylamino]-2-[(2S,3S,4R,5R,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]propanoyl]amino]propanoylamino]-1-oxopropan-2-yl]oxan-2-yl]methyl acetate 在
哌啶 、
N-甲基吡咯烷酮 作用下,
生成
tert-butyl (2R)-3-{(2S)-3-[(9-fluorenylmethoxy)carbonylamino]-2-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)propanoylamino}-2-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)propanoate