(R)-2-benzyloxy-3-hydroxy-propionaldehyde   、                                                                                      
(S)-2,2-Dimethyl-4-nitromethyl-oxazolidine-3-carboxylic acid tert-butyl ester                                                                                                                                                              在
                                                                                                                                                                                 
四丁基氟化铵                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 168.0h,
                                                                                                                生成                                                 (S)-4-((1S,2S,3R)-3-Benzyloxy-2,4-dihydroxy-1-nitro-butyl)-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester   、                                                                                             (S)-4-((1R,2S,3R)-3-Benzyloxy-2,4-dihydroxy-1-nitro-butyl)-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester