dimethyl 1-(carbamoylamino)-2-hydroxy-2-(2-methoxy-2-oxoethyl)-5-methyl-3H-pyrrole-3,4-dicarboxylate                                                                                                                                                              在
                                                                                                                                                                                 copper(II) bis(trifluoromethanesulfonate)                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以87%的产率得到Dimethyl 1-(carbamoylamino)-2-(2-methoxy-2-oxoethyl)-5-methylpyrrole-3,4-dicarboxylate