Effects of N-Substitutions on the Tetrahydroquinoline (THQ) Core of Mixed-Efficacy ?-Opioid Receptor (MOR)/?-Opioid Receptor (DOR) Ligands.

ABSTRACT: N-Acetylation of the tetrahydroquinoline (THQ) core of a series of ?-opioid receptor (MOR) agonist/?-opioid receptor (DOR) antagonist ligands increases DOR affinity, resulting in ligands with balanced MOR and DOR affinities. We report a series of N-substituted THQ analogues that incorporate various carbonyl-containing moieties to maintain DOR affinity and define the steric and electronic requirements of the binding pocket across the opioid receptors. 4h produced in vivo antinociception (ip) for 1 h at 10 mg/kg.

SUBMITTER: Harland AA 

PROVIDER: S-EPMC4885601 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature