(3S,8R,9S,10R,13S,14S,17S)-3-fluoro-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol

3β,5α-difluoroandrostan-17-one

3β,10β-difluoro-5β-methyl-nor-androstan-17-one

3β,5,5-trifluoro-A-homo-B-nor-6β-androstan-17-one

3β,5β-difluoro-6α-bromoandrostan-17-one