三乙基铝   、                                                                                      
(1S,5R)-1-(3,4-Dihydro-2H-pyridine-1-carbonyl)-5,8,8-trimethyl-3-phenyl-3-aza-bicyclo[3.2.1]octane-2,4-dione                                                                                                                                                              在
                                                                                                                                                                                 
盐酸                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 (1S,5R)-1-((R)-2-Ethyl-piperidine-1-carbonyl)-5,8,8-trimethyl-3-phenyl-3-aza-bicyclo[3.2.1]octane-2,4-dione   、                                                                                             (1S,5R)-1-((S)-2-Ethyl-piperidine-1-carbonyl)-5,8,8-trimethyl-3-phenyl-3-aza-bicyclo[3.2.1]octane-2,4-dione