Design, synthesis, and AMPA receptor antagonistic activity of a novel 6-nitro-3-oxoquinoxaline-2-carboxylic acid with a substituted phenyl group at the 7 position
We describe the design, synthesis, and biological properties of a novel series of 7- substituted 6-nitro-3-oxoquinoxaline-2-carboxylic acids. After designing, studying the structure–activity relationships, and evaluating the properties of various compounds, we found that 7-heterocyclic-6-nitro-3-oxoquinoxaline-2-carboxylic acids that contain a substituted phenyl group linked through urethane at the 7 position possess good α-amino- ...