Trifluoro-acetic acid (2S,4aS,4bS,7R,8aR,10aR)-4a,7-dimethyl-8-oxo-1,2,3,4,4a,4b,7,8,8a,9,10,10a-dodecahydro-phenanthren-2-yl ester

(2R,4aS,4bS,7S,8aR,10aR)-2,4b-dimethyl-4a,4b,5,6,7,8,8a,9,10,10a-decahydro-2H-spiro[phenanthrene-1,2'-[1,3]dithian]-7-yl 2,2,2-trifluoroacetate

(1S,4aS,4bS,7S,8aR,10aR)-7-((tert-butyldimethylsilyl)oxy)-2,4b-dimethyl-1-(4-(trimethylsilyl)but-3-yn-1-yl)-1,4,4a,4b,5,6,7,8,8a,9,10,10a-dodecahydrophenanthren-1-ol

2-Benzyloxy-1-[(3S,5R,8R,9S,10S,13R,14S,17S)-3-(tert-butyl-dimethyl-silanyloxy)-14-hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl]-ethanone

(2R,4aS,4bS,7R,8aR,10aR)-2,4b-dimethyl-4a,4b,5,6,7,8,8a,9,10,10a-decahydro-2H-spiro[phenanthrene-1,2'-[1,3]dithian]-7-ol