Succinic acid (3S,5R,8R,9S,10S,13R,14S,17R)-17-((E)-2-methoxycarbonyl-vinyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester 2-trimethylsilanyl-ethyl ester

3β-acetoxy-5β-androstan-17β-carboxylic acid chloride

Succinic acid (3S,5R,8R,9S,10S,13S,14S,17S)-17-formyl-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester 2-trimethylsilanyl-ethyl ester

4-(((3S,5R,8R,9S,10S,13R,14S,17R)-17-((E)-3-ethoxy-3-oxoprop-1-en-1-yl)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl)oxy)-4-oxobutanoic acid