title: Chemical and biological study of aromatic oxygenated 6-ketomorphinans.
mesh_terms: D000700:Analgesics / Q000138:chemical synthesis; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D009019:Morphinans / Q000138:chemical synthesis* / Q000494:pharmacology; D011957:Receptors, Opioid / Q000187:drug effects; D013329:Structure-Activity Relationship
chemical_list: D000700:Analgesics; D009019:Morphinans; D011957:Receptors, Opioid