title: Discovery of allosteric potentiators for the metabotropic glutamate 2 receptor: synthesis and subtype selectivity of N-(4-(2-methoxyphenoxy)phenyl)-N-(2,2,2- trifluoroethylsulfonyl)pyrid-3-ylmethylamine.
abstract: 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.
authors.affiliation: Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana 46285, USA. johnson_michael_p@lilly.com
authors.forename: Michael P
authors.initials: MP
authors.lastname: Johnson
authors.forename: Melvyn
authors.initials: M
authors.lastname: Baez
authors.forename: G Erik
authors.initials: GE
authors.lastname: Jagdmann
authors.forename: Thomas C
authors.initials: TC
authors.lastname: Britton
authors.forename: Thomas H
authors.initials: TH
authors.lastname: Large
authors.forename: David O
authors.initials: DO
authors.lastname: Callagaro
authors.forename: Joseph P
authors.initials: JP
authors.lastname: Tizzano
authors.forename: James A
authors.initials: JA
authors.lastname: Monn
authors.forename: Darryle D
authors.initials: DD
authors.lastname: Schoepp
mesh_terms: D000494:Allosteric Regulation; D000818:Animals; D014151:Anti-Anxiety Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D002118:Calcium / Q000378:metabolism; D002478:Cells, Cultured; D004357:Drug Synergism; D018690:Excitatory Amino Acid Agonists / Q000494:pharmacology; D006801:Humans; D007700:Kinetics; D011725:Pyridines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D051381:Rats; D018094:Receptors, Metabotropic Glutamate / Q000819:agonists / Q000037:antagonists & inhibitors / Q000187:drug effects*; D013216:Reflex, Startle / Q000187:drug effects; D013329:Structure-Activity Relationship; D013449:Sulfonamides / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology
chemical_list: D014151:Anti-Anxiety Agents; D018690:Excitatory Amino Acid Agonists; C476436:N-(4-(2-methoxyphenoxy)phenyl)-N-(2,2,2-trifluoroethylsulfonyl)pyrid-3-ylmethylamine; C476435:N-(4-phenoxyphenyl)-N-(3-pyridinylmethyl)ethanesulfonamide; D011725:Pyridines; D018094:Receptors, Metabotropic Glutamate; D013449:Sulfonamides; C108822:metabotropic glutamate receptor 2; D002118:Calcium