2-[(8S,9S,10R,11S,13S,14S,17S)-11-羟基-10,13-二甲基-3-氧代-6,7,8,9,11,12,14,15,16,17-十氢环戊烯并[a]菲-17-基]-2-氧代乙酸甲酯
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