描述:
                                
                                                                                                                         (6aR,7S,9aS,11S,13aS)-5-benzyloxy-2,3,6,6a,7,8,9,9a,10,11,12,13-dodecahydro-6a,7,10,10-tetramethyl-11-phenylsulfonylamino-3-oxo-1H-benzo[8,8a][1]benzopyrano[2,3-e]isoindole                                                                                                                                                                                                                                                                                                          以14 mg (71%)的产率得到(6aR,7S,9aS,11S,13aS)-2,3,6,6a,7,8,9,9a,10,11,12,13-dodecahydro-5-hydroxy-6a,7,10,10-tetramethyl-11-phenylsulfonylamino-3-oxo-1H-benzo[8,8a][1]benzopyrano[2,3-e]isoindole