Steroid total synthesis. VII. ( )-Estr-4-ene-3, 17-dione and ( ) 13 -ethyl-gon-4-ene-3, 17-dione.
D015068:17-Ketosteroids / Q000138:chemical synthesis*; D004962:Estranes / Q000138:chemical synthesis*; D008722:Methods
D015068:17-Ketosteroids; D004962:Estranes