(2S,3R,4S,5S,6R)-2-(((2S,3R,4S,5R,6R)-2-(((2R,3R,4R,5R,6R)-4,5-二羟基-2-(羟甲基)-6-(((2aS,4S,5'S,6aS,6bS,8aS,8bR,9S,10S,11aS,12aS,12bR)-5',6a,8a,9-四甲基十八氢螺[萘并[2',1':4,5]茚并[2,1-b]呋喃-10,2'-哌啶]-4-基)氧基)四氢-2H-吡喃-3-基)氧基)-5-羟基-6-(羟甲基)-4-(((2S,3R,4S,5R)-3,4,5-三羟基四氢-2H-吡