(2S,4aR,4bS,6aS,7aS,8aS,8bS,8cR)-2-((tert-butyldimethylsilyl)oxy)-4a,6a-dimethyl-1,2,3,4,4a,4b,5,6,6a,7a,8a,8b,8c,9-tetradecahydro-7H-naphtho[1',2':6,7]indeno[1,2-b]oxiren-7-one

3β-(tert-butyldimethylsilyloxy)androsta-5,15-dien-17-one

(3S,8S,9S,10R,13R,14S,17R)-17-[(2R)-7-羟基-6-甲基庚烷-2-基]-10,13-二甲基-2,3,4,7,8,9,11,12,14,15,16,17-十二氢-1H-环戊二烯并[a]菲-3-醇

5,6β-dibromo-5α-cholestane

5.6α-dibromo-5β-cholestane