3-bromo-N,beta,beta-trimethyl-D-phenylalanyl-N1-[(1S,2E)-4-ethoxy-1-isopropyl-3-methyl-4-oxo-2-butenyl]-N1,3-dimethyl-L-valinamide                                                                                                                                                              在
                                                                                                                                                                                 lithium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 15.0h,
                                                                                                                生成                                                 (E,4S)-4-[[(2S)-2-[[(2R)-3-(3-bromophenyl)-3-methyl-2-(methylamino)butanoyl]amino]-3,3-dimethylbutanoyl]-methylamino]-2,5-dimethylhex-2-enoic acid