8,9,19,20,25,26-Hexamethoxynonacyclo[14.6.6.65,12.02,15.04,13.06,11.017,22.023,28.029,34]tetratriaconta-2(15),4(13),6,8,10,17,19,21,23,25,27,29,31,33-tetradecaene-3,14-dione                                                                                                                                                              在
                                                                                                                                                                                 ammonium cerium (IV) nitrate   、                                                                                                  
水                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以45%的产率得到(1R,5S,12R,16S)-25,26-dimethoxynonacyclo[14.6.6.65,12.02,15.04,13.06,11.017,22.023,28.029,34]tetratriaconta-2(15),4(13),6,10,17,21,23,25,27,29,31,33-dodecaene-3,8,9,14,19,20-hexone