(3R,4R,5R,6R,7S)-7-(tert-butyldimethylsiloxy)-6-(4-methoxybenzyloxy)-3,5-dimethyl-3,4-epoxy-1-octene                                                                                                                                                              在
                                                                                                                                                                                 
四丁基氟化铵                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                生成                                                 
(2R,3S,4S,5R,6S)-3,4,5,6-tetrahydro-5-(4-methoxybenzyloxy)-2,4,6-trimethyl-2-vinyl-2H-pyran-3-ol   、                                                                                             
   、                                                                                             (3R,4R,5R,6R,7S)-7-hydroxy-6-(4-methoxybenzyloxy)-3,5-dimethyl-3,4-epoxy-1-octene