Abstract
NMDA receptors mediate glutamatergic neurotransmission and are therapeutic targets due to their involvement in a variety of psychiatric and neurological disorders. Here, we describe the design and synthesis of a series of (R)-3-(5-furanyl)carboxamido-2-aminopropanoic acid analogues 8a-s as agonists at the glycine (Gly) binding site in the GluN1 subunit, but not GluN3 subunits, of NMDA receptors. These novel analogues display highly variable potencies and agonist efficacies among the NMDA receptor subtypes (GluN1/2A-D) in a manner dependent on the GluN2 subunit. Notably, compound 8p is identified as a potent partial agonist at GluN1/2C (EC50 = 0.074 μM) with an agonist efficacy of 28% relative to activation by Gly and virtually no agonist activity at GluN1/2A, GluN1/2B, and GluN1/2D. Thus, these novel agonists can modulate the activity of specific NMDA receptor subtypes by replacing the full endogenous agonists Gly or d-serine (d-Ser), thereby providing new opportunities in the development of novel therapeutic agents.
| Original language | English |
|---|---|
| Pages (from-to) | 734-746 |
| Number of pages | 13 |
| Journal | Journal of Medicinal Chemistry |
| Volume | 65 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 13 2022 |
Funding
The authors acknowledge financial support from the China Scholarship Council to F.Z. and the National Institutes of Health [NS097536, NS116055, GM103546] to K.B.H. The authors declare the following competing financial interest(s): K.B.H. is principal investigator on a research grant from Janssen Research and Development to the University of Montana. All other authors have no conflicts of interest to declare. Acknowledgments
| Funder number |
|---|
| GM103546, NS097536 |
| R01NS116055 |