Steroid total synthesis. V. ( )-estr-4-ene-3,17-dione and ( )-13 -ethylgon-4-ene-3,17-dione.
D015068:17-Ketosteroids / Q000138:chemical synthesis; D004962:Estranes / Q000138:chemical synthesis; D008722:Methods; D009654:Norsteroids / Q000138:chemical synthesis*
D015068:17-Ketosteroids; D004962:Estranes; D009654:Norsteroids