2-[3-(N'-{6-amino-2-[2-(3-phenoxyphenyl)acetylamino]hexanoyl}hydrazino)-4,4,4-trifluorobutyrylamino]-3-phenylpropionic acid methyl ester   、                                                                                      
三氟乙酸                                                                                                                                                                                              以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以259 mg的产率得到2-[3-(N'-{6-amino-2-[2-(3-phenoxyphenyl)acetylamino]hexanoyl}hydrazino)-4,4,4-trifluorobutyrylamino]-3-phenylpropionic acid methyl ester trifluoroacetic acid salt