(3S,8S,9S,10R,13S,14S,17R)-17-((2S,6R)-7-azido-6-methyl-3-oxoheptan-2-yl)-3-((tert-butyldiphenylsilyl)oxy)-10,13-dimethyl-1,2,3,4,7,8,9,10,11,12,13,14,15,17-tetradecahydro-16H-cyclopenta[a]phenanthren-16-one

(4S,6aR,6bS,8aS,8bR,9S,11aS,12aS,12bS)-10-((R)-4-azido-3-methylbutyl)-4-((tert-butyldiphenylsilyl)oxy)-6a,8a,9-trimethyl-3,4,5,6,6a,6b,7,8,8a,8b,9,10,11a,12,12a,12b-hexadecahydro-1H-naphtho[2',1':4,5]indeno[2,1-b]furan-10-ol

(2R,6S)-6-((3S,8S,9S,10R,13S,14S,17R)-3-((tert-butyldiphenylsilyl)oxy)-10,13-dimethyl-16-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-methyl-5-oxoheptyl acetate

(25R)-3β-hydroxy-26-phthalimido-cholest-5-ene-16,22-dione

(22S,25R)-N-Benzyloxycarbonyl-22,26-epiminocholest-5-ene-3β,16β-diol