(8R,9S,13S,14S,17S)-13-乙基-3-甲氧基-6,7,8,9,11,12,14,15,16,17-十氢环戊烯并[a]菲-17-醇

13-乙基-3-甲氧基雌甾-1,3,5(10),8-四烯-17b-醇

乙炔

乙基三烯酮