17-Hydroxy-7a-methyl-19-nor-17a-pregn-5(10)-en-20-yn-3-one ;(7R,8R,9S,13S,14S,17R)-17-ethynyl-17-hydroxy-7,13-dimethyl-1,2,4,6,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one