title: Regiospecific syntheses of modified steroid hormones. II. 4-Fluoro-17 -oestradiol and -oestrone.
mesh_terms: D004958:Estradiol / Q000138:chemical synthesis*; D004970:Estrone / Q000138:chemical synthesis*; D005461:Fluorine; D008722:Methods; D009654:Norsteroids / Q000138:chemical synthesis; D013057:Spectrum Analysis
chemical_list: D009654:Norsteroids; D005461:Fluorine; D004970:Estrone; D004958:Estradiol