title: Total synthesis of steroids. XI. Synthesis of optically active 11-ketoestrane derivatives.
mesh_terms: D004963:Estrenes / Q000138:chemical synthesis*; D007664:Ketosteroids / Q000138:chemical synthesis; D008722:Methods; D009905:Optical Rotatory Dispersion
chemical_list: D004963:Estrenes; D007664:Ketosteroids