Opioid Peptidomimetics: Leads for the Design of Bioavailable Mixed Efficacy μ Opioid Receptor (MOR) Agonist/δ Opioid Receptor (DOR) Antagonist Ligands
摘要:
We have previously described opioid peptidomimetic, 1, employing a tetrahydroquinoline scaffold and modeled on a series of cyclic tetrapeptide opioid agonists. We have recently described modifications to these peptides that confer a mu opioid receptor (MOR) agonist, delta opioid receptor (DOR) antagonist profile, which has been shown to reduce the development of tolerance to the analgesic actions of MOR agonists. Several such bifunctional ligands have been reported, but none has been demonstrated to cross the blood-brain barrier. Here we describe the transfer of structural features that evoked MOR agonist/DOR antagonist behavior in the cyclic peptides to the tetrahydroquinoline scaffold and show that the resulting peptidomimetics maintain the desired pharmacological profile. Further, the 4R diastereomer of 1 was fully efficacious and approximately equipotent to morphine in the mouse warm water tail withdrawal assay following intraperitoneal administration and thus a promising lead for the development of opioid analgesics with reduced tolerance.
Disclosed herein are compounds useful for modulating the mu-opioid receptor (“MOR”) and/or delta-opioid receptor (“DOR”), and methods of using these compounds to treat diseases and conditions, such as pain. In particular, disclosed herein are compounds of Formula (I) and pharmaceutically acceptable salt thereof:
wherein the substituents are as described.
Effects of <i>N</i>-Substitutions on the Tetrahydroquinoline (THQ) Core of Mixed-Efficacy μ-Opioid Receptor (MOR)/δ-Opioid Receptor (DOR) Ligands
作者:Aubrie A. Harland、Aaron M. Bender、Nicholas W. Griggs、Chao Gao、Jessica P. Anand、Irina D. Pogozheva、John R. Traynor、Emily M. Jutkiewicz、Henry I. Mosberg
DOI:10.1021/acs.jmedchem.6b00308
日期:2016.5.26
N-Acetylation of the tetrahydroquinoline (THQ) core of a series of mu-opioid receptor (MOR) agonist/delta-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.
[EN] PEPTIDOMIMETICS AND METHODS OF USING THE SAME<br/>[FR] PEPTIDOMIMÉTIQUES ET SES PROCÉDÉS D'UTILISATION
申请人:UNIV MICHIGAN REGENTS
公开号:WO2018053240A1
公开(公告)日:2018-03-22
Disclosed herein are compounds useful for modulating the mu-opioid receptor ("MOR") and/or delta-opioid receptor ("DOR"), and methods of using these compounds to treat diseases and conditions, such as pain. In particular, disclosed herein are compounds of Formula (I) and pharmaceutically acceptable salt thereof: (I), wherein the substituents are as described.