(8S,9S,11S,13S,14S)-13-ethyl-3-methoxy-5',5'-dimethyl-11-((trimethylsilyl)methyl)-1,4,6,7,8,9,11,12,13,14,15,16-dodecahydrospiro[cyclopenta[a]phenanthrene-17,2'-[1,3]dioxan]-11-ol

(17beta)-13-乙基-17-羟基-11-亚甲基-4-雌烯-3-酮

D-13β-Ethyl-11β-hydroxy-11α-methylgon-5-ene-3,11-dione-3,17-diethylene ketal

13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal)

D-13β-ethyl-11β-hydroxy-11α-methylgon-4-ene-3,17-dione