(2R,3S)-4-benzyl-2-(hydroxy-p-tolylmethyl)morpholin-3-one   、                                                                                      (2S)-2-[(R)-(4-methylphenyl)(hydroxy)methyl]-4-benzylmorpholin-3-one                                                                                                                                                                                                                                                                                                          生成                                                 (2R)-2-[(R)-(4-methylphenyl)(hydroxy)methyl]-4-benzylmorpholine   、                                                                                             (2S)-2-[(S)-(4-methylphenyl)(hydroxy)methyl]-4-benzylmorpholine