Design, synthesis and structure-activity relationships of novel phenylalanine-based amino acids as kainate receptors ligands.
Bioorg Med Chem Lett
; 26(22): 5568-5572, 2016 11 15.
Article
em En
| MEDLINE
| ID: mdl-27765511
ABSTRACT
A new series of carboxyaryl-substituted phenylalanines was designed, synthesized and pharmacologically characterized in vitro at native rat ionotropic glutamate receptors as well as at cloned homomeric kainate receptors GluK1-GluK3. Among them, six compounds bound to GluK1 receptor subtypes with reasonable affinity (Ki values in the range of 4.9-7.5µM). A structure-activity relationship (SAR) for the obtained series, focused mainly on the pharmacological effect of structural modifications in the 4- and 5-position of the phenylalanine ring, was established. To illustrate the results, molecular docking of the synthesized series to the X-ray structure of GluK1 ligand binding core was performed. The influence of individual substituents at the phenylalanine ring for both the affinity and selectivity at AMPA, GluK1 and GluK3 receptors was analyzed, giving directions for future studies.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fenilalanina
/
Desenho de Fármacos
/
Receptores de Ácido Caínico
Limite:
Animals
Idioma:
En
Revista:
Bioorg Med Chem Lett
Assunto da revista:
BIOQUIMICA
/
QUIMICA
Ano de publicação:
2016
Tipo de documento:
Article