10,13-dimethyl-17-(6-methylheptan-2-yl)-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-2,3-diol

semicarbazone of 5α-cholestan-3-one

3,3-(Trismethylen-1,3-dithio)cholestan

2α-iodo-5α-cholestan-3-one