title: The synthesis of 3beta-hydroxyestr-4-en-17-one and 3beta-hydroxyandrost-4-en-17-one.
mesh_terms: D000731:Androstanes / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D004962:Estranes / Q000138:chemical synthesis*
chemical_list: D000731:Androstanes; D004962:Estranes