17β-(t-butyldimethylsilyloxy)-7α-(dimethylphenylsilyl)-androst-4-en-3-one

3-[(Z)-1-(Dimethyl-phenyl-silanyl)-3-methyl-but-1-enylsulfanyl]-propionic acid ethyl ester

3β-(t-butyldimethylsilyloxy)-16α-(dimethylphenylsilyl)-5α-pregnan-20-one