3-[5-(2,3-epoxy-5-hydroxy-4-methylhexyl)-3,4-dihydroxytetrahydropyran-2-yl]propan-2-one   、                                                                                      
磷酰基乙酸三乙酯                                                                                                                                                                                              以
                                                                                         
四氢呋喃   、                                                                                         
甲醇   、                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 ethyl 4-[3,4-dihydroxy-5-(2,3-epoxy-5-hydroxy-4-methylhexyl)-2,3,5,6-tetrahydropyran-2-yl]-3-methylbut-2Z-enoate   、                                                                                             
ethyl 4-[3,4-dihydroxy-5-(2,3-epoxy-5-hydroxy-4-methylhexyl)-2,3,5,6-tetrahydropyran-2-yl]-3-methylbut-2E-enoate