醋酸叔丁酯   、                                                                                      
5-[2-(2-Methoxy-ethoxymethoxy)-eth-(Z)-ylidene]-1-methyl-7-oxa-bicyclo[4.1.0]heptane                                                                                                                                                                                                                                                                                                          生成                                                 {(1R,2R)-2-Hydroxy-6-[2-(2-methoxy-ethoxymethoxy)-eth-(Z)-ylidene]-2-methyl-cyclohexyl}-acetic acid tert-butyl ester   、                                                                                             {(1R,2R)-2-Hydroxy-6-[2-(2-methoxy-ethoxymethoxy)-eth-(E)-ylidene]-2-methyl-cyclohexyl}-acetic acid tert-butyl ester