1-(3,5-bis-trifluoromethylphenyl)-2-oxo-pyrrolidine-4-carboxylic acid chloride   、                                                                                      
正丙胺                                                                                                                                                                                              以
                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                                                        以is obtained 3.1 g (81% of theory) of 1-(3,5-bis-trifluoromethylphenyl)-2-oxo-pyrrolidine-4-carboxylic acid-N-n-propylamide的产率得到1-(3,5-bis-trifluoromethyl-phenyl)-5-oxo-pyrrolidine-3-carboxylic acid propylamide