tert-butyl (2S)-3-{(2R)-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                                                                                                                                                              在
                                                                                                                                                                                 
甲酸                                                                                                                                  作用下,
                                                                                                                                                                                                                            以79%的产率得到(2S)-3-{(2R)-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)propanoic acid