BMS-986163 is a negative allosteric modulator of GluN2B and the prodrug BMS-986163 rapidly converts to its active parent molecule BMS-986169 (Ki=4 nM, IC50=24 nM).
GNE-3476 is an NMDA receptor PAM. Ge-3476 has different degrees of activity on different receptors.GNE-3476 has relatively low efficacy on GluN2A, some activity as an AMPAR PAM, and weak activity at GluN2B-containing receptors.
NAB-14 is a powerful and selective chemical compound that acts as a non-competitive antagonist for GluN2C and GluN2D receptors. With an IC50 value of 580 nM for GluN1/GluN2D, NAB-14 demonstrates high potency. This compound exhibits a remarkable selectivity of more than 800-fold towards recombinant GluN2C and GluN2D when compared to GluN2A and GluN2B. Furthermore, NAB-14 possesses the ability to penetrate the blood-brain-barrier effectively [1].
PEAQX, also known as NVP-AAM077; 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 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.