(7β,17α)-17-Hydroxy-7-methyl-19-norpregn-5(10)-en-20-yn-3-one;(7S,8R,9S,13S,14S,17R)-17-Ethynyl-17-hydroxy-7,13-dimethyl-4,6,7,8,9,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one;17-Hydroxy-7β-methyl-19-nor-17α-pregn-5(10)-en-20-yn-3-one;(7S,8R,9S,13S,14S,17S)-17-Ethynyl-17-hydroxy-7,13-dimethyl-1,2,4,6,7,8,9,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one