title: Narcotic antagonists--structure-activity relationships.
mesh_terms: D000478:Alkylation; D055598:Chemical Phenomena; D002621:Chemistry; D003061:Codeine; D005663:Furans; D007536:Isomerism; D008614:Meperidine / Q000494:pharmacology; D008968:Molecular Conformation; D009019:Morphinans / Q000494:pharmacology; D009292:Narcotic Antagonists / Q000494:pharmacology*; D009904:Optical Rotation; D013329:Structure-Activity Relationship; D013797:Thebaine / Q000494:pharmacology
chemical_list: D005663:Furans; D009019:Morphinans; D009292:Narcotic Antagonists; D013797:Thebaine; D008614:Meperidine; D003061:Codeine