N-(N-trifuoroacetyl-L-alanyl-β-ethyl-L-α-aspartyl)-3,4-didehydro-5-diethoxyphosphinyl-D-norvaline ethyl ester                                                                                                                                                              在
                                                                                                                                                                                 mesentericopeptidase                                                                                                                                  作用下,
                                                                                                                                                                                        反应 6.0h,
                                                                                                                以88.3%的产率得到N-(N-trifluoroacetyl-L-alanyl-L-α-aspartyl)-3,4-didehydro-5-diethoxyphosphinyl-D-norvaline ethyl ester