title: 19-Norprogestins. Synthesis and biological activity of 6-chloro-16-methylene-17 -hydroxy-19-nor-4,6-pregnadiene-3,20-dione 17-acetate.
mesh_terms: D000726:Androgen Antagonists; D055598:Chemical Phenomena; D002621:Chemistry; D002713:Chlorine; D003640:Dealkylation; D007664:Ketosteroids / Q000138:chemical synthesis / Q000494:pharmacology; D009654:Norsteroids / Q000138:chemical synthesis / Q000494:pharmacology; D011245:Pregnadienes / Q000138:chemical synthesis / Q000494:pharmacology; D011278:Pregnanes; D011372:Progestins / Q000494:pharmacology
chemical_list: D000726:Androgen Antagonists; D007664:Ketosteroids; D009654:Norsteroids; D011245:Pregnadienes; D011278:Pregnanes; D011372:Progestins; D002713:Chlorine