title: Influence of a 9alpha-fluorine on the epoxidation of an 11beta-hyroxy-delta4-3-keto steroid with basic hydrogen peroxide.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004852:Epoxy Compounds; D004988:Ethers, Cyclic; D006861:Hydrogen Peroxide; D006914:Hydroxysteroids; D007664:Ketosteroids; D013259:Steroids, Fluorinated
chemical_list: D004852:Epoxy Compounds; D004988:Ethers, Cyclic; D006914:Hydroxysteroids; D007664:Ketosteroids; D013259:Steroids, Fluorinated; D006861:Hydrogen Peroxide