New results in the total synthesis of 19-norsteroids.
D055598:Chemical Phenomena; D002621:Chemistry; D004970:Estrone / Q000138:chemical synthesis*; D007783:Lactones; D009654:Norsteroids / Q000138:chemical synthesis*; D013237:Stereoisomerism
D007783:Lactones; D009654:Norsteroids; D004970:Estrone