title: [Synthesis of 4,9(11)-androstadiene-3,17 - dione (author's transl)].
mesh_terms: D000730:Androstadienes / Q000138:chemical synthesis*; D000735:Androstenedione / Q000031:analogs & derivatives / Q000138:chemical synthesis
chemical_list: D000730:Androstadienes; D000735:Androstenedione
vernacular_title: Synthese von 4,9(11)-Androstadien-3,17 - dion