title: Heterocyclic steroids. Part II. Synthesis of (+/-)-8-hydroxy-3-methoxy-11-aza-18-norestra-1,3,5(10),9(11)-tetraen-17-one and related compounds.
mesh_terms: D001378:Azasteroids / Q000138:chemical synthesis*; D004963:Estrenes / Q000138:chemical synthesis*; D008722:Methods; D009654:Norsteroids / Q000138:chemical synthesis; D013260:Steroids, Heterocyclic / Q000138:chemical synthesis*
chemical_list: D001378:Azasteroids; D004963:Estrenes; D009654:Norsteroids; D013260:Steroids, Heterocyclic