(19R)-10β-Aziridin-2-yl-3β-hydroxyestr-5-en-17β-yl tert-butyldimethylsilyl ether

(19R)-10β-Aziridin-2-yl-17β-hydroxyestr-4-en-3-one

(19S)-10β-Aziridin-2-yl-17β-hydroxyestr-4-en-3-one

Acetic acid (8R,9S,10S,13S,14S,17S)-13-methyl-3-oxo-10-vinyl-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl ester

19-nor-10β-vinyl-3β,17β-bis-tertbutyldimethylsiloxy-androst-5-ene