(1S,5R,6R,9R,13R)-1,5-dimethyl-9-ethylenedioxymethyl-5-methoxycarbonyl-10-oxa-11-phenylthiotricyclo<7.4.0.0
9,13>tridecane                                                                                                                                                              在
                                                                                                                                                                                 
间氯过氧苯甲酸   、                                                                                                  
亚磷酸三乙酯                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 
(1S,5R,6R,9R,13R)-1,5-dimethyl-9-ethylenedioxymethyl-5-methoxycarbonyl-10-oxatricyclo<7.4.0.09,13>tridec-11-ene