10,10-ethylenedioxy-3β-benzyloxy-4,4-dimethyl-1α,2β,6β,7α-tricyclo-<5.2.1.0
2.6>dec-8-ene                                                                                                                                                                                                                                                                                                          生成                                                 
3,3-(ethylenedioxy)-2β,4β-bis(hydroxymethyl)-7,7-dimethyl-1α,5α-bicyclo<3.3.0>octan-6α-ol   、                                                                                             
   、                                                                                             3,3-(ethylenedioxy)-2β,4β-bis-(hydroxymethyl)-6α-benzyloxy-7,7-dimethyl-1α,5α-bicyclo<3.3.0>octane