Piperazine-2,3-dicarboxylic Acid Derivatives as Dual Antagonists of NMDA and GluK1-Containing Kainate Receptors
摘要:
Competitive N-methyl-D-aspartate receptor (NMDAR) antagonists bind to the GluN2 subunit, of which there are four types (GluN2A-D). We report that some N-1-substituted derivatives of cis-piperazine-2,3-dicarboxylic acid display improved relative affinity for GluN2C and GluN2D versus GluN2A and GluN2B. These derivatives also display subtype selectivity among the more distantly related kainate receptor family. Compounds 18i and (-)-4 were the most potent kainate receptor antagonists, and 18i was selective for GluK1 versus GluK2, GluK3 and AMPA receptors. Modeling studies revealed structural features required for activity at GluK1 subunits and suggested that S674 was vital for antagonist activity. Consistent with this hypothesis, replacing the equivalent residue in GluK3 (alanine) with a serine imparts 18i antagonist activity. Antagonists with dual GluN2D and GluK1 antagonist activity may have beneficial effects in various neurological disorders. Consistent with this idea, antagonist 18i (30 mg/kg ip) showed antinociceptive effects in an animal model of mild nerve injury.
Piperazine-2,3-dicarboxylic Acid Derivatives as Dual Antagonists of NMDA and GluK1-Containing Kainate Receptors
摘要:
Competitive N-methyl-D-aspartate receptor (NMDAR) antagonists bind to the GluN2 subunit, of which there are four types (GluN2A-D). We report that some N-1-substituted derivatives of cis-piperazine-2,3-dicarboxylic acid display improved relative affinity for GluN2C and GluN2D versus GluN2A and GluN2B. These derivatives also display subtype selectivity among the more distantly related kainate receptor family. Compounds 18i and (-)-4 were the most potent kainate receptor antagonists, and 18i was selective for GluK1 versus GluK2, GluK3 and AMPA receptors. Modeling studies revealed structural features required for activity at GluK1 subunits and suggested that S674 was vital for antagonist activity. Consistent with this hypothesis, replacing the equivalent residue in GluK3 (alanine) with a serine imparts 18i antagonist activity. Antagonists with dual GluN2D and GluK1 antagonist activity may have beneficial effects in various neurological disorders. Consistent with this idea, antagonist 18i (30 mg/kg ip) showed antinociceptive effects in an animal model of mild nerve injury.
ATTEMPTS TO FIND NEW ANTIMALARIALS. XII. DERIVATIVES OF PHENANTHRENE, IV. 1 (OR 8)-ACETYL-9-HALOPHENANTHRENE
作者:J. SCHULTZ、M. A. GOLDBERG、E. P. ORDAS、G. CARSCH
DOI:10.1021/jo01174a004
日期:1946.7
[EN] POSITIVE AND NEGATIVE MODULATORS OF NMDA RECEPTORS<br/>[FR] MODULATEURS POSITIFS ET NÉGATIFS DES RÉCEPTEURS NMDA
申请人:UNIV NEBRASKA
公开号:WO2012019106A2
公开(公告)日:2012-02-09
Disclosed herein are compounds useful as modulators of an NMDA receptor. Further disclosed are methods of modulating an NMDA receptor using these compounds, and methods of treating various NMDA-receptor disorders, such as, for example, schizophrenia, post-traumatic stress disorder, Alzheimer's disease, and pain.
Piperazine-2,3-dicarboxylic Acid Derivatives as Dual Antagonists of NMDA and GluK1-Containing Kainate Receptors
作者:Mark W. Irvine、Blaise M. Costa、Daniel Dlaboga、Georgia R. Culley、Richard Hulse、Caroline L. Scholefield、Palmi Atlason、Guangyu Fang、Richard Eaves、Richard Morley、Maria B. Mayo-Martin、Mascia Amici、Zuner A. Bortolotto、Lucy Donaldson、Graham L. Collingridge、Elek Molnár、Daniel T. Monaghan、David E. Jane
DOI:10.1021/jm201230z
日期:2012.1.12
Competitive N-methyl-D-aspartate receptor (NMDAR) antagonists bind to the GluN2 subunit, of which there are four types (GluN2A-D). We report that some N-1-substituted derivatives of cis-piperazine-2,3-dicarboxylic acid display improved relative affinity for GluN2C and GluN2D versus GluN2A and GluN2B. These derivatives also display subtype selectivity among the more distantly related kainate receptor family. Compounds 18i and (-)-4 were the most potent kainate receptor antagonists, and 18i was selective for GluK1 versus GluK2, GluK3 and AMPA receptors. Modeling studies revealed structural features required for activity at GluK1 subunits and suggested that S674 was vital for antagonist activity. Consistent with this hypothesis, replacing the equivalent residue in GluK3 (alanine) with a serine imparts 18i antagonist activity. Antagonists with dual GluN2D and GluK1 antagonist activity may have beneficial effects in various neurological disorders. Consistent with this idea, antagonist 18i (30 mg/kg ip) showed antinociceptive effects in an animal model of mild nerve injury.