(E)-ethyl 3β-(tert-buthyldimethylsiloxy)pregna-5,17-(20)-dien-21-oate

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

tert-Butyl-[(3S,8R,9S,10R,13S,14S)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-yloxy]-dimethyl-silane

(20S)-ethyl 3β-(tert-butyldimethylsiloxy)-20-methylpregna-5,16-dien-21-oate

(20S)-3β-(tert-butyldimethylsilyloxy)-20-hydroxymethylpregna-5,16(17)-diene