6-[6-(tert-butyl-dimethyl-silanyloxy)-4-hydroxy-1,5-dimethyl-trideca-7,9,11-trienyl]-5-methyl-5,6-dihydro-2H-pyran-2-ol                                                                                                                                                              在
                                                                                                                                                                                 silver carbonate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                以66%的产率得到6-[6-(tert-butyl-dimethyl-silanyloxy)-4-hydroxy-1,5-dimethyl-trideca-7,9,11-trienyl]-5-methyl-5,6-dihydro-pyran-2-one