Methyl 4-amino-4,6-dideoxy-α-D-glucopyranoside   、                                                                                      
乙酸酐   、                                                                                      
(1S)-3,4-di-O-acetyl-1,2-anhydro-(1,2,4/3)-5-<(benzoyloxy)methyl>-5-cyclohexene-1,2,3,4-tetrol                                                                                                                                                                                                                                                                                                          生成                                                 Methyl 2,3-di-O-acetyl-4,6-dideoxy-4-<<(1R)-(1,5/4,6)-4,5,6-triacetoxy-4-benzoyloxymethyl-2-cyclohexen-1-yl>amino>-α-D-glucopyranoside