title: Opioid binding profiles of new hydrazone, oxime, carbazone and semicarbazone derivatives of 14-alkoxymorphinans.
abstract: Several hydrazone, oxime, carbazone and semicarbazone derivatives of 14-alkoxycodeinones and 14-alkoxydihydrocodeinones were synthesised [1] and characterised in in vitro radioligand binding assays in rat brain membrane preparations. The tested compounds show the highest affinity for the mu opioid binding sites and most of them have agonist character. Subtype analysis of the binding shows mu2 specificity. However, some of these ligands are able to block partially (40-60%) the high affinity (putative mu1) opioid binding sites while all of them act as reversible ligands at the low affinity (putative mu2) sites.
authors.affiliation: Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged.
authors.forename: K
authors.initials: K
authors.lastname: Monory
authors.forename: E
authors.initials: E
authors.lastname: Greiner
authors.forename: N
authors.initials: N
authors.lastname: Sartania
authors.forename: L
authors.initials: L
authors.lastname: Sallai
authors.forename: Y
authors.initials: Y
authors.lastname: Pouille
authors.forename: H
authors.initials: H
authors.lastname: Schmidhammer
authors.forename: J
authors.initials: J
authors.lastname: Hanoune
authors.forename: A
authors.initials: A
authors.lastname: Borsodi
mesh_terms: D000345:Affinity Labels; D000818:Animals; D001921:Brain / Q000378:metabolism; D066298:In Vitro Techniques; D007700:Kinetics; D009019:Morphinans / Q000138:chemical synthesis / Q000737:chemistry / Q000378:metabolism*; D009270:Naloxone / Q000378:metabolism; D009292:Narcotic Antagonists / Q000378:metabolism; D010098:Oxycodone / Q000031:analogs & derivatives / Q000378:metabolism; D051381:Rats; D017208:Rats, Wistar; D011957:Receptors, Opioid / Q000819:agonists / Q000378:metabolism*; D017465:Receptors, Opioid, delta / Q000819:agonists / Q000037:antagonists & inhibitors / Q000378:metabolism; D017473:Receptors, Opioid, kappa / Q000819:agonists / Q000037:antagonists & inhibitors / Q000378:metabolism; D017450:Receptors, Opioid, mu / Q000819:agonists / Q000037:antagonists & inhibitors / Q000378:metabolism; D013329:Structure-Activity Relationship
chemical_list: D000345:Affinity Labels; D009019:Morphinans; D009292:Narcotic Antagonists; D011957:Receptors, Opioid; D017465:Receptors, Opioid, delta; D017473:Receptors, Opioid, kappa; D017450:Receptors, Opioid, mu; D009270:Naloxone; D010098:Oxycodone