title: [Structure-activity relationships analysis of thienorphine and its derivatives].
abstract: Thienorphine is a chemically-new opioid developed in Beijing Institute of Pharmacology and Toxicology. To elucidate the chemical basis for the unique pharmacological effects of thienorphine, 15 derivatives were synthesized according to combinatorial chemistry and the structure-activity relationships of these compounds were studied. It is demonstrated that thienorphine is a potent long-acting partial agonist. N-Cyclopropylmethyl is responsible for the antagonist effect of thienorphine. More importantly, thiophene at the end of side chain is most likely the pharmacophore accounts for the long-lasting effect of thienorphine. Change of the connection of thiophene and the side chain does not result in changes in the antinociceptive activity.
authors.affiliation: Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Yu
authors.forename: Yong-Shao
authors.initials: YS
authors.lastname: Liu
authors.forename: Ling-Di
authors.initials: LD
authors.lastname: Yan
authors.forename: Quan
authors.initials: Q
authors.lastname: Wen
authors.forename: Ze-Hui
authors.initials: ZH
authors.lastname: Gong
mesh_terms: D000818:Animals; D002047:Buprenorphine / Q000031:analogs & derivatives* / Q000493:pharmacokinetics / Q000494:pharmacology; D020650:Combinatorial Chemistry Techniques; D004305:Dose-Response Relationship, Drug; D005260:Female; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D009020:Morphine / Q000494:pharmacology; D051381:Rats; D017208:Rats, Wistar; D011957:Receptors, Opioid / Q000819:agonists*; D013329:Structure-Activity Relationship
chemical_list: D011957:Receptors, Opioid; C512397:thienorphine; D002047:Buprenorphine; D009020:Morphine