(2S,4S,5S)-di-tert-butyl-4-formyl-5-[(S)-1-(triethylsilyloxy)but-3-enyl]pyrrolidine-1,2-dicarboxylate   、                                                                                      
乙烯基溴化镁                                                                                                                                                                                              以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (2S,4S,5S)-di-tert-butyl 4-(1-hydroxyallyl)-5-[(S)-1-(triethylsilyloxy)but-3-enyl]pyrrolidine-1,2-dicarboxylate   、                                                                                             (2S,4S,5S)-di-tert-butyl 4-(1-hydroxyallyl)-5-[(S)-1-(triethylsilyloxy)but-3-enyl]pyrrolidine-1,2-dicarboxylate