4-[2-carboxy-1-(4-fluoro-phenyl)-ethyl]-piperidine-1-carboxylic acid tert-butyl ester   、                                                                                      
(S)-N-甲基-1-[3,5-二(三氟甲基)苯基]乙胺                                                                                                                                                              在
                                                                                                                                                                                 
N,N-二异丙基乙胺   、                                                                                                  
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-)                                                                                                                                  作用下,
                                                                                                                以
                                                                                         DMF (N,N-dimethyl-formamide)                                                                                  为溶剂,
                                                                                                                                                    反应 12.5h,
                                                                                                                生成                                                 
1,1-dimethylethyl-4-[3-[{(1S)-1-[3,5-bis(trifluoromethyl)phenyl]ethyl}(methyl)amino]-1-(4-fluorophenyl)-3-oxopropyl]-1-piperidinecarboxylate   、                                                                                             1,1-dimethylethyl-4-[3-[{(1S)-1-[3,5-bis(trifluoromethyl)phenyl]ethyl}(methyl)amino]-1-(4-fluorophenyl)-3-oxopropyl]-1-piperidinecarboxylate