AZD-8529 is a highly selective, and orally bioavailable positive allosteric modulator of mGluR2 (EC50: 285 nM). It shows no positive allosteric modulator responses at 20-25 M on the mGluR1, 3, 4, 5, 6, 7, and 8 subtypes.
L-Cysteinesulfinic acid is a potent agonist at several rat metabotropic glutamate receptors [mGluRs, pEC50s of 3.92±0.03, 4.6±0.2, 3.9±0.2, 2.7±0.2, 4.0±0.2, and 3.94±0.08 for mGluR1, mGluR5, mGluR2, mGluR4, mGluR6, and mGluR8, respectively].