1-庚烯,1-硝基-,(1E)-   、                                                                                      
6-Vinyl-3,4-dihydro-2H-pyridine-1-carboxylic acid benzyl ester                                                                                                                                                                                              以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (4aR,5S,6R)-5-Nitro-6-pentyl-3,4,4a,5,6,7-hexahydro-2H-quinoline-1-carboxylic acid benzyl ester   、                                                                                             (4aR,5R,6S)-5-Nitro-6-pentyl-3,4,4a,5,6,7-hexahydro-2H-quinoline-1-carboxylic acid benzyl ester