Methyl (2S)-6,7,8,10-tetra-O-acetyl-2-(tert-butoxycarbonylamino)-2,3,4,5,9-pentadeoxy-5,9-[(trifluoromethylcarbonyl)imino]-D-glycero-D-ido-deconate                                                                                                                                                              在
                                                                                                                                                                                 
水   、                                                                                                  
三氟乙酸                                                                                                                                  作用下,
                                                                                                                                                                                        反应 2.5h,
                                                                                                                生成                                                 (S)-2-Amino-4-[(2R,3S,4R,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-1-(2,2,2-trifluoro-acetyl)-piperidin-2-yl]-butyric acid methyl ester