13-ethyl-gona-4-ene-11α,17β-diol

18a-homo-estr-4-ene-11,17-dione

3-methoxy-18a-homo-estra-2,5(10)-diene-11α,17β-diol

3,3-ethylenedithio-18a-homo-estr-4-ene-11α,17β-diol

11-methylene-17-<(2,2-dimethyl)propane-1,3-dioxy>-18a-homo-estr-4-ene