title: [Synthesis of 9(11)-ones of androstane and pregnane series].
mesh_terms: D000731:Androstanes / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D009682:Magnetic Resonance Spectroscopy; D011278:Pregnanes / Q000138:chemical synthesis*
chemical_list: D000731:Androstanes; D011278:Pregnanes
vernacular_title: Synteza 9(11)-enów z serii androstanu i pregnanu