10β-hydroperoxy-17β-hydroxy-7α-methyl-19-nor-17α-pregn-4-en-20-yn-3-one
3,3-dimethoxy-7α-methyl-19-nor-17α-pregn-5(10)-en-20-yn-17β-ol
10β,17β-dihydroxy-7α-methyl-19-nor-17α-pregn-4-en-20-yn-3-one
tibolone
7α-methyl-17α-ethinyl-17β-hydroxy-4-estren-3-one