Dysfunction of glutamatergic neurotransmission has been implicated in the pathogenesis of epilepsy and numerous other neurological diseases. Here we describe the discovery of a series of 1, 3, 5-triaryl-1 H-pyridin-2-one derivatives as noncompetitive antagonists of AMPA- type ionotropic glutamate receptors. The structure–activity relationships for this series of compounds were investigated by manipulating individual aromatic rings located at ...