2-[[17-羟基-17-[1-[5'-(5-羟基-4-甲氧基-6-甲基四氢吡喃-2-基)氧基-4'-甲氧基-6',9-二甲基螺[4,5A,6,7,9,9alpha-六氢吡喃并[4,5-f][1,2,5]三氧杂卓-3,2'-四氢吡喃]-7-基]氧乙基]-10,13-二甲基-1,2,3,4,7,8,9,11,12,14,15,16-十二氢环戊烯并[a]菲-3-基]氧基]-4-甲氧基-6-甲基-6H-吡喃-3-酮
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