piperidine-4-carboxylic acid (4-trifluoromethoxy-phenyl)-amide   、                                                                                      
2,2-二甲基戊酸                                                                                                                                                                                                                                                                                                          以to give the desired 1-(4,4-dimethyl-pentanoyl)-piperidine-4-carboxylic acid (4-trifluoromethoxy-phenyl)-amide (0.178 g) as an off-white solid的产率得到1-(4,4-dimethyl-pentanoyl)-piperidine-4-carboxylic acid (4-trifluoromethoxy-phenyl)-amide