在
                                                                                                                                                                                 
氟化氢吡啶                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        以1.9 mg的产率得到[(1S,3S,7S,8E,11S,12S,13E,15S,17R,21R,23R,25S)-11,21-dihydroxy-17-(hydroxymethyl)-13-(2-methoxy-2-oxoethylidene)-10,10-dimethyl-12-octanoyloxy-19-oxo-6,18,27,28,29-pentaoxatetracyclo[21.3.1.13,7.111,15]nonacos-8-en-25-yl] furan-2-carboxylate