Discovery of Allosteric Potentiators for the Metabotropic Glutamate 2 Receptor: Synthesis and Subtype Selectivity of <i>N</i>-(4-(2-Methoxyphenoxy)phenyl)-<i>N</i>-(2,2,2− trifluoroethylsulfonyl)pyrid-3-ylmethylamine
作者:Michael P. Johnson、Melvyn Baez、G. Erik Jagdmann、Thomas C. Britton、Thomas H. Large、David O. Callagaro、Joseph P. Tizzano、James A. Monn、Darryle D. Schoepp
DOI:10.1021/jm034015u
日期:2003.7.1
This report describes recently discovered novel allosteric modulators of metabotropic glutamate2 (mGlu2) receptors. These pyridylmethylsulfonamides (e.g., 3) potentiate glutamate, shifting agonist potency by 2-fold. This effect was specific for mGlu2 (vs mGlu1,3-8 receptors). Also, 3 failed to potentiate a chimeric mGlu2/1 receptor, demonstrating the mGlu2 transmembrane region's critical involvement. In a fear-potentiated startle model, 3 showed anxiolytic activity that was prevented by mGlu2/3 antagonist pretreatment. Thus, these pyridylmethylsulfonamides represent the first mGlu2 receptor potentiators discovered.