6-{(E)-(3R,6S,7S)-7-[(2S,3S,5S)-5-Ethyl-5-((2R,5R,6S)-5-ethyl-5-hydroxy-6-methyl-tetrahydro-pyran-2-yl)-3-methyl-tetrahydro-furan-2-yl]-6-hydroxy-3,5-dimethyl-non-4-enyl}-2-hydroxy-3-methyl-benzoic acid benzyl ester                                                                                                                                                              在
                                                                                                                                                                                 
叔丁基过氧化氢   、                                                                                                  
bis(acetylacetonate)oxovanadium                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 6-[(R)-3-((2S,3R)-3-{(R)-2-[(2S,3S,5S)-5-Ethyl-5-((2R,5R,6S)-5-ethyl-5-hydroxy-6-methyl-tetrahydro-pyran-2-yl)-3-methyl-tetrahydro-furan-2-yl]-butyryl}-3-methyl-oxiranyl)-butyl]-2-hydroxy-3-methyl-benzoic acid benzyl ester