7-Methyl-8-oxo-5-p-tolyl-7,8-dihydro-[1,7]naphthyridine-6-carboxylic acid [(S)-1-(3,5-bis-trifluoromethyl-phenyl)-ethyl]-amide   、                                                                                      
碘甲烷                                                                                                                                                              在
                                                                                                                                                                                 sodium hydride                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 7-Methyl-8-oxo-5-p-tolyl-7,8-dihydro-[1,7]naphthyridine-6-carboxylic acid [(S)-1-(3,5-bis-trifluoromethyl-phenyl)-ethyl]-methyl-amide   、                                                                                             7-Methyl-8-oxo-5-p-tolyl-7,8-dihydro-[1,7]naphthyridine-6-carboxylic acid [(S)-1-(3,5-bis-trifluoromethyl-phenyl)-ethyl]-methyl-amide