(Z)-(1S,2S,4S,6R,11S,14S)-6-Methoxymethoxy-4,8,11-trimethyl-15-oxa-tricyclo[12.1.0.01,11]pentadec-8-en-2-ol                                                                                                                                                              在
                                                                                                                                                                                 lithium tetrafluoroborate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                                                        以100%的产率得到(Z)-(3S,3aS,6R,8R,12aS)-3-Hydroxy-8-methoxymethoxy-6,10,12a-trimethyl-2,3,3a,5,6,7,8,9,12,12a-decahydro-1H-cyclopentacycloundecen-4-one