对甲苯磺酸   、                                                                                      
                                                                                                                                                                                              以
                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以38.1 mg的产率得到(4aS,6bR,8aR,10S,12aR,12bR,14S,14bS)-10-Hydroxy-2,2,6b,9,9,12a-hexamethyl-14-(toluene-4-sulfonyloxymethyl)-1,3,4,5,6,6b,7,8,8a,9,10,11,12,12a,12b,13,14,14b-octadecahydro-2H-picene-4a-carboxylic acid methyl ester