PEAQX

PEAQX

Systematic (IUPAC) name
({[(1S)-1-(4-bromophenyl)ethyl]amino}-(2,3-dioxo-1,4-dihydroquinoxalin-5-yl)methyl)phosphonic acid
Clinical data
Identifiers
PubChem	CID 9868551
ChemSpider	8044242 N
Synonyms	PEAQX, NVP-AAM077
Chemical data
Formula	C17H17BrN3O5P
Molecular mass	454.211 g/mol
SMILES C[C@@H](C1=CC=C(C=C1)Br)NC(C2=C3C(=CC=C2)N=C(C(=N3)O)O)P(=O)(O)O
InChI InChI=1S/C17H17BrN3O5P/c1-9(10-5-7-11(18)8-6-10)19-17(27(24,25)26)12-3-2-4-13-14(12)21-16(23)15(22)20-13/h2-9,17,19H,1H3,(H,20,22)(H,21,23)(H2,24,25,26)/t9-,17?/m0/s1  N Key:XXZGNAZRWCBSBK-WFVOFKTRSA-N  N
N (what is this?)  (verify)

PEAQX is a competitive antagonist at the NMDA receptor. Although originally described as 100-fold selective for GluN1/GluN2A receptors vs. GluN1/GluN2B receptors, more detailed studies^[1] of the Ki of PEAQX revealed it only shows a 5 fold difference in affinity for GluN1/GluN2A vs. GluN1/GluN2B receptors. It is also a potent anticonvulsant in animal tests.^[2]

References

1. ↑ Frizelle PA, Chen PE, Wyllie DJ Equilibrium constants for (R)-[(S)-1-(4-bromo-phenyl)-ethylamino]-(2,3-dioxo-1,2,3,4-tetrahydroquinoxalin-5-yl)-methyl]-phosphonic acid (NVP-AAM077) acting at recombinant NR1/NR2A and NR1/NR2B N-methyl-D-aspartate receptors: Implications for studies of synaptic transmission. Molecular Pharmacology 2006 Sep;70(3):1022-32. PMID 16778008
2. ↑ Auberson YP, Allgeier H, Bischoff S, Lingenhoehl K, Moretti R, Schmutz M. 5-Phosphonomethylquinoxalinediones as competitive NMDA receptor antagonists with a preference for the human 1A/2A, rather than 1A/2B receptor composition. Bioorganic and Medicinal Chemistry Letters. 2002 Apr 8;12(7):1099-102. PMID 11909726