2-皮考基三苯基鏻氯化物   、                                                                                      
(4S,5R)-5-((R)-1-Benzyloxy-2-oxo-ethyl)-4-cyclohexylmethyl-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester                                                                                                                                                              在
                                                                                                                                                                                 
potassium tert-butylate                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 (4S,5R)-5-((Z)-(S)-1-Benzyloxy-3-pyridin-2-yl-allyl)-4-cyclohexylmethyl-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester   、                                                                                             (4S,5R)-5-((E)-(S)-1-Benzyloxy-3-pyridin-2-yl-allyl)-4-cyclohexylmethyl-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester