17-Hydroxy-19-nor-17-alpha-pregn-4-en-20-yn-3-one acetate (ester) O-(carboxymethyl)oxime 19-Nor-17-alpha-pregn-4-en-20-yn-3-one, 17-hydroxy-, acetate (ester), O-(carboxymethyl)oxime 22234-07-7 3-(O-Carboxymethyl)-17-beta-acetoxy-17-alpha-ethynyl-19-norandrost-4-en-3-one oxime 3-(o-Carboxymethyl)-17beta-acetoxy-17alpha-ethynyl-19-norandrost-4-en-3-one oxime