苯基锂   、                                                                                      
(-)-(2R,4R,5R,5'S)-2-(2'-oxo-2',5'-dihydro-5'-furyl)-2,5-diphenyl-3-(4-methylbenzenesulfonyl)-4-methyl-1,3-oxazolidine                                                                                                                                                              在
                                                                                                                                                                                 
copper(l) iodide                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 (4R,5S)-5-[(2R,4R,5R)-4-Methyl-2,5-diphenyl-3-(toluene-4-sulfonyl)-oxazolidin-2-yl]-4-phenyl-dihydro-furan-2-one