(17R)-17-Hydroxy-19-nor-5β-pregn-1-ene-3,20-dione

(17R)-17-Hydroxy-19-nor-5α-pregn-1-ene-3,20-dione

(8S,9S,10R,13S,14S,17R)-17-hydroxy-17-(2-iodoacetyl)-10,13-dimethyl-1,2,6,7,8,9,12,14,15,16-decahydrocyclopenta[a]phenanthrene-3,11-dione

Gestonorone

5,9-Cyclopregn-1-ene-3,20-dione,21-(acetyloxy)-11-(formyloxy)-17-hydroxy-,(5R,9S,11beta)

17-Hydroxy-19-norpregna-4,9-diene-3,20-dione

[(8R,9S,10R,13S,14S,17S)-17-acetyl-13-methyl-3-oxo-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate