(5alpha,11beta,17alpha)-11-[4-(二甲基氨基)苯基]-5,17-二羟基-19-去甲孕-9-烯-20-炔-3-酮环1,2-乙二基缩醛

醋酸优力司特中间体

(5alpha,10alpha)-5,10-环氧-17-羟基-19-去甲雄甾-9(11)-烯-3,20-二酮环-3,20-双(1,2-乙缩醛)

3-ethylenedioxy-17β-cyano-17α-chloromethyl(dimethyl)silyloxyestra-5(10),9(11)-diene

3-(ethylenedioxy)estra-5α,10α-epoxy-17α-ethynyl-17β-hydroxy-9(11)-ene