methyl 3-[4-(2-methoxy-2-oxoethyl)-5-methyl-2-(phenylmethoxycarbonylamino)-1H-pyrrol-3-yl]propanoate                                                                                                                                                              在
                                                                                                                                                                                 
air                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                    反应 24.0h,
                                                                                                                以63%的产率得到3-{2-[(E)-Benzyloxycarbonylimino]-5-hydroxy-4-methoxycarbonylmethyl-5-methyl-2,5-dihydro-1H-pyrrol-3-yl}-propionic acid methyl ester