title: Preparation and reactions of norethynodrel epoxide. A possible mechanism for A-ring aromatization of 19-norsteroids.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004852:Epoxy Compounds / Q000138:chemical synthesis / Q000378:metabolism; D004963:Estrenes; D004988:Ethers, Cyclic; D004997:Ethinyl Estradiol; D006900:Hydroxylation; D006914:Hydroxysteroids; D007664:Ketosteroids; D009641:Norethynodrel / Q000138:chemical synthesis / Q000378:metabolism; D009654:Norsteroids / Q000378:metabolism; D012825:Silicon
chemical_list: D004852:Epoxy Compounds; D004963:Estrenes; D004988:Ethers, Cyclic; D006914:Hydroxysteroids; D007664:Ketosteroids; D009654:Norsteroids; D004997:Ethinyl Estradiol; D009641:Norethynodrel; D012825:Silicon