(2R,4S,5S,1'S)-2-phenylmethyl-4-(t-butyldimethyl)siloxy-5-(t-butoxycarbonyl)amino-6-phenyl-N-[1'-isopropyl-1'-(imidazo-2-yl)]methyl-hexanamide   、                                                                                      
四丁基氟化铵   、                                                                                      
甲醇盐酸                                                                                                                                                                                              以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        以83%的产率得到(2R,4S,5S,1'S)-2-phenylmethyl-4-hydroxy-5-(t-butoxycarbonyl)-amino-6-phenyl-N-(1'-isopropyl-1'-(imidazo-2-yl))methyl-hexanamide hydrochloride