Perzinfotel (EAA-090) is a potent, selective, and competitive NMDA receptor antagonist with neuroprotective effects. Perzinfotel (EAA-090) shows high affinity (IC50=30 nM) for the glutamate site[1][2]. NMDA receptor[1]
Perzinfotel blocks NMDA-induced currents with an IC50 of 0.48 μM and glutamate-induced neurotoxicity with an IC50 of 1.6 μM[1].
[1]. Brandt MR, et al. Effects of the N-methyl-D-aspartate receptor antagonist perzinfotel [EAA-090; [2-(8,9-dioxo-2,6-diazabicyclo[5.2.0]non-1(7)-en-2-yl)-ethyl]phosphonic acid] on chemically induced thermal hypersensitivity. J Pharmacol Exp Ther. 2005 Jun;313(3):1379-86. [2]. Kinney WA, et al. Design and synthesis of [2-(8,9-dioxo-2,6-diazabicyclo[5.2.0]non-1(7)-en-2-yl)-ethyl]phosphonic acid(EAA-090), a potent N-methyl-D-aspartate antagonist, via the use of 3-cyclobutene-1,2-dione as an achiral alpha-amino acid bioisostere. J Med Chem. 1998 Jan 15;41(2):236-46.