title: Postulated origin of narcotic antagonist activity in novel N-methylbenzomorphans.
mesh_terms: D001575:Benzomorphans / Q000031:analogs & derivatives; D009019:Morphinans; D009292:Narcotic Antagonists; D013329:Structure-Activity Relationship
chemical_list: D001575:Benzomorphans; D009019:Morphinans; D009292:Narcotic Antagonists