title: Synthesis and analgesic activity of some 5-(4-hydroxyphenyl)-2-azabicyclo[3.2.1]octanes.
abstract: A representative series of 5-(4-hydroxyphenyl)-2-azabicyclo[3.2.1]octanes was synthesized and evaluated in vitro, as well as in vivo, as potential analgetic agents. In general, moderate to good activity (19 twice as active as morphine) was observed in the phenylquinone writhing assay (PQW), while only marginal activity was detected by the tail-flick method. Compounds 19 and 18, being the most active in the PQW model, also demonstrated weak binding affinity for the opiate receptors labeled by [3H]naloxone in rat brain homogenates.
mesh_terms: D000700:Analgesics / Q000138:chemical synthesis*; D000818:Animals; D001667:Binding, Competitive; D001921:Brain / Q000378:metabolism; D001643:Bridged Bicyclo Compounds / Q000138:chemical synthesis* / Q000378:metabolism / Q000494:pharmacology; D001952:Bridged-Ring Compounds / Q000138:chemical synthesis*; D066298:In Vitro Techniques; D008297:Male; D051379:Mice; D009270:Naloxone / Q000378:metabolism; D051381:Rats; D011957:Receptors, Opioid / Q000378:metabolism; D013329:Structure-Activity Relationship
chemical_list: D000700:Analgesics; D001643:Bridged Bicyclo Compounds; D001952:Bridged-Ring Compounds; D011957:Receptors, Opioid; D009270:Naloxone