Conformationally restricted κ-opioid receptor agonists: Synthesis and pharmacological evaluation of diastereoisomeric and enantiomeric decahydroquinox...
Basic Information
ID: ALA3632621
Journal: Bioorg Med Chem Lett
Title: Conformationally restricted κ-opioid receptor agonists: Synthesis and pharmacological evaluation of diastereoisomeric and enantiomeric decahydroquinoxalines.
Authors: Molenveld P, Bouzanne des Mazery R, Sterk GJ, Storcken RP, Autar R, van Oss B, van der Haas RN, Fröhlich R, Schepmann D, Wünsch B, Soeberdt M.
Abstract: All diastereoisomeric decahydroquinoxalines representing conformationally restricted analogs of κ agonists U-50,488 and GR-89,696 have been prepared. Cis/trans configured compound 7 is by far the highest binding diastereoisomer with a Ki of 0.35 nM. Racemates 4, 6, and 7 were separated into enantiomers. (+)-(4aR,5S,8aS)-Configured enantiomer 7b was identified as a high affinity (Ki=0.25 nM) κ ligand with high selectivity over μ and δ receptors. It acts as full agonist with an EC50 value of 2.0 nM in the [(35)S]GTPγS assay, while enantiomer 7a showed an EC50 value of 1000 nM.
CiteXplore: 26411794
DOI: 10.1016/j.bmcl.2015.09.040
Patent ID: ┄