(7R,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-7?-methyl-19-nor-17?-pregn-5(10)-en-20-yn-3-one
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