17-Methoxy-7-alpha-methyl-19-nor-17-alpha-pregn-4-en-20-yn-3-one 17-alpha-Ethinyl-17-beta-methoxy-7-alpha-methyl-4-estren-3-one 19-Nor-17-alpha-pregn-4-en-20-yn-3-one, 17-methoxy-7-alpha-methyl- RC9044000