三氟乙酸   、                                                                                      
((R)-4-{(R)-1-[(1H-Benzoimidazol-2-yl)-hydroxy-methyl]-3-phenyl-propylcarbamoyl}-4-tert-butoxycarbonylamino-butyl)-carbamic acid tert-butyl ester                                                                                                                                                                                              以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (R)-2,5-Diamino-pentanoic acid {(R)-1-[(1H-benzoimidazol-2-yl)-hydroxy-methyl]-3-phenyl-propyl}-amide; compound with trifluoro-acetic acid