2,3,4-trichlorodihydrofuran-1-one   、                                                                                      
(+/-)-cis-3-amino-1,4-diphenylazetidin-2-one                                                                                                                                                                                              以
                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                    反应 4.0h,
                                                                                                                生成                                                 
(3RS,4SR)-(+/-)-<(5RS)-3,4-Dichlor-2,5-dihydro-5-hydroxy-2-oxo-1H-pyrrol-1-yl>-1,4-diphenylazetidin-2-on   、                                                                                             (3RS,4SR)-(+/-)-3-<(5SR)-3,4-Dichlor-2,5-dihydro-5-hydroxy-2-oxo-1H-pyrrol-1-yl>-1,4-diphenylazetidin-2-on