title: Novel analgesics and molecular rearrangements in the morphine-thebaine group. XXIV. 15,16-didehydro-6,14-endo-etheno-6,7,8,14-tetrahydro-thebaines and -oripavines.
mesh_terms: D000470:Alkaloids; D000700:Analgesics / Q000138:chemical synthesis*; D006865:Hydrogenation; D009020:Morphine; D010084:Oxidation-Reduction; D013797:Thebaine
chemical_list: D000470:Alkaloids; D000700:Analgesics; D013797:Thebaine; D009020:Morphine