17β-(tert-butyldimethylsiloxy)-13-ethyl-11-(hydroxymethyl)-3-methoxygona-1,3,5(10),9(11)-tetraene

(+)-(1S,3aS,4S,7aS)-3a,4,7,7a-tetrahydro-1-(tert-butyldimethylsiloxy)-6-carbomethoxy-7a-ethyl-5-hydroxy-4-(2-(3-methoxyphenyl)ethyl)indane

17β-(tert-butyldimethylsiloxy)-11-carbomethoxy-13-ethyl-3-methoxygona-1,3,5(10),9(11)-tetraene

18-甲基-11-亚甲基雌甾-4-烯-3,17-二酮

13-ethyl-11-methylenegon-4-ene-3,17-dione cyclic 3-(1,2-ethanediyl dithioacetal)