t-butyl 3-<2-<2'-(4-t-butyloxycarbonylaminobutyryl)aminothiazole-4'-caboxamido>thiazole-5-carboxamido>propyl-1-carbamate                                                                                                                                                              在
                                                                                                                                                                                 
氢溴酸   、                                                                                                  
溶剂黄146                                                                                                                                  作用下,
                                                                                                                                                                                        反应 0.5h,
                                                                                                                以87%的产率得到3-<2-<2'-(4-aminobutyryl)aminothiazole-4'-caboxamido>thiazole-5-carboxamido>propyl-1-amine dihydrobromide