shoreaketone   、                                                                                      
乙酸酐                                                                                                                                                              在
                                                                                                                                                                                 
吡啶                                                                                                                                  作用下,
                                                                                                                                                                                        反应 24.0h,
                                                                                                                以32 mg的产率得到[4-[(1R,2R,3R,4R,11R,12R,19S,24S)-7,15-diacetyloxy-3-[(2R,3R)-6-acetyloxy-2-(4-acetyloxyphenyl)-3-(3,5-diacetyloxyphenyl)-2,3-dihydro-1-benzofuran-4-yl]-11-(4-acetyloxyphenyl)-21-oxo-10,18-dioxaheptacyclo[11.10.2.15,9.01,19.04,24.017,25.012,26]hexacosa-5(26),6,8,13(25),14,16,22-heptaen-2-yl]phenyl] acetate