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ID: ALA1132861

Journal: Bioorg Med Chem Lett

Title: Synthesis, radiolabelling and biological characterization of (D)-7-iodo-N-(1-phosphonoethyl)-5-aminomethylquinoxaline-2,3-dione, a glycine-binding site antagonist of NMDA receptors.

Authors: Ametamey SM, Kokic M, Carrey-Rémy N, Bläuenstein P, Willmann M, Bischoff S, Schmutz M, Schubiger PA, Auberson YP.

Abstract: (D)-7-Iodo-N-(1-phosphonoethyl)-5-aminomethylquinoxaline-2,3 -dione (I-PAMQX), is a potent, in vivo active antagonist acting at the glycine binding site of the NMDA receptor complex. Radioiodinated [131I]I-PAMQX was prepared with good yields and high specific activity from its 7-bromo analogue. Biodistribution studies of [131I]I-PAMQX in mice showed a relatively slow clearance from the blood. The uptake of radioactivity was highest in the kidneys, moderate in the heart, lung, liver and bones, and low in the brain.

CiteXplore: 10636248

DOI: 10.1016/s0960-894x(99)00576-4