Methyl 4-chloro-2-[2-[cyclohexylmethyl-[2-[methyl(2-pyridin-2-ylethyl)amino]-2-oxoethyl]amino]-2-oxoethyl]pent-4-enoate                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide   、                                                                                                  
potassium hydrogensulfate   、                                                                                                  Alcalase                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
水   、                                                                                         
丙酮                                                                                  为溶剂,
                                                                                                                                                    反应 39.0h,
                                                                                                                生成                                                 (R)-4-Chloro-2-[(cyclohexylmethyl-{[methyl-(2-pyridin-2-yl-ethyl)-carbamoyl]-methyl}-carbamoyl)-methyl]-pent-4-enoic acid methyl ester   、                                                                                             (R)-4-Chloro-2-[(cyclohexylmethyl-{[methyl-(2-pyridin-2-yl-ethyl)-carbamoyl]-methyl}-carbamoyl)-methyl]-pent-4-enoic acid   、                                                                                             4-{(Cyclohexylmethyl)-{2-{methyl{2-(2-pyridinyl)-ethyl}amino}-2-oxoethyl}amino}-2(S)-(2-chloro-2-propenyl)-4-oxobutanoic Acid