LY367385 is a highly potent and selective mGluR1a antagonist. LY367385 has an IC50 of 8.8 μM for inhibits of quisqualate-induced phosphoinositide (PI) hydrolysis, compared with > 100 μM for mGlu5a. LY367385 has neuroprotective, anticonvulsant and antiepileptic effects.

JNJ-46281222 is an metabotropic glutamate (mGlu) 2-selective, highly potent PAM (positive allosteric modulator) with nanomolar affinity (Kd = 1.7 nM) and a high modulatory potency (pEC50 = 7.71).

Biphenylindanone A (BINA) is a selective human mGluR2 (hmGluR2) potentiator for the treatment of many neurological disorders.

Decoglurant (RO4995819) is a negative allosteric modulator of mGluR2 and mGluR3. Decoglurant is developed as an antidepressant.

LY 541850 is claimed from human ionotropic and metabotropic glutamate (mGlu) receptors expressed in non-neuronal cells. LY541850 is a selective orthosteric mGlu2 agonist and mGlu3 antagonist with IC50 values of 0.161 μM and 0.038 μM, respectively.

YM-298198 hydrochloride is a high-affinity, selective, and noncompetitive antagonist of metabotropic glutamate receptor type 1 (mGluR1). YM-298198 hydrochloride can be used for the research of neurological disorders.

AZD 2066 hydrate is a selective, orally active and brain-penetrant antagonist of mGluR5. AZD 2066 hydrate has antinociception effects.

ADX71743 is a highly selective, noncompetitive and brain-penetrant metabotropic glutamate receptor 7 negative allosteric modulator (mGlu7 NAM). ADX71743 has anxiolytic-like activity.

NPEC-caged-LY379268 is a type II mGluR agonist.

LY3020371 is a potent and selective antagonist of glutamate (mGlu) 2/3 receptor, with Kis of 5.26 and 2.50 nM for hmGluR2 and hmGluR3, respectively. LY3020371 can be used for the research of depression.

mGluR2 antagonist 1 is a highly potent, orally bioavailable and selective class of mGluR2 negative allosteric modulator (IC50 of 9 nM) with excellent brain permeability.

3,3'-Difluorobenzaldazine (DFB) is a selective positive allosteric modulator of mGluR5. 3,3'-Difluorobenzaldazine potentiates 3- to 6-fold action for mGlu5 agonists (Glutamate, Quisqualate, and 3,5-Dihydroxyphenylglycine), with EC50s in the 2 to 5 μM range.

Cinnabarinic acid is a specific orthosteric agonist of mGlu4 by interacting with residues of the glutamate binding pocket of mGlu4, has no activity at other mGlu receptors. Cinnabarinic acid is an endogenous metabolite of the kynurenine pathway of tryptophan. Cinnabarinic acid induces cell apoptosis.

L-Cysteinesulfinic acid monohydrate is a potent agonist at several rat metabotropic glutamate receptors (mGluRs) with pEC50s of 3.92, 4.6, 3.9, 2.7, 4.0, and 3.94 for mGluR1, mGluR5, mGluR2, mGluR4, mGluR6, and mGluR8, respectively.

Pomaglumetad methionil hydrochloride (LY2140023 hydrochloride) is an orally active, methionine prodrug of the selective mGlu2/3 receptor agonist LY404039. Pomaglumetad methionil hydrochloride has the potential for schizophrenia research.

HTL14242 (HTL0014242) is an advanced and orally active mGlu5 NAM with a pKi and a pIC50 of 9.3 and 9.2, respectively. HTL14242 can be used for the research of parkinson’s disease.

L-AP4 (L-APB) monohydrate is a potent and specific agonist for the group III mGluRs, with EC50s of 0.13, 0.29, 1.0, 249 μM for mGlu4, mGlu8, mGlu6 and mGlu7 receptors, respectively.

ML337 is a selective and brain-penetrant negative allosteric modulator of mGlu3, with an IC50 of 593 nM. ML337 possesses a favorable dystrophia myotonica protein kinase (DMPK) and ancillary pharmacology profile.

VU-1545 is a metabotropic glutamate receptor 5 positive allosteric modulator (mGluR5 PAM) with a Ki of 156 nM and an EC50 of 9.6 nM.

RO0711401 is a selective and orally active positive allosteric modulator of mGlu1 receptor with an EC50 of 56 nM.

MFZ 10-7 hydrochloride is a highly potent and selective mGluR5 NAM (negative allosteric modulator), with a Ki of 0.67 nM for rat mGluR5. MFZ 10-7 hydrochloride inhibits cocaine-taking and cocaine-seeking behavior in rats.

JF-NP-26, an inactive photocaged derivative of raseglurant, is the first caged mGlu5 receptor negative allosteric modulator. Uncaging of JF-NP-26 is elicited with light pulses in the visible spectrum (405 nm). JF-NP-26 induces light-dependent analgesia in models of inflammatory and neuropathic pain in freely behaving animals.