[(3S,7S,8R,9S,10R,13S,14S)-3-hydroxy-10,13-dimethyl-17-oxo-1,2,3,4,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-7-yl] acetate

(20E)-3beta-羟基孕甾-5,16-二烯-20-酮 20-肟 3-乙酸酯

16-脱氢孕烯醇酮乙酸酯

皂素

5-androsten-7,17-dione-3β-ol ethylene ketal tert-butyldimethylsilyl ether