DCG-IV is an effective agonist of class II mGluR. DCG-IV has anticonvulsant and neuroprotective effects. The EC50 of mGlu2R and mGlu3R are 0.35 and 0.09 μM, respectively. DCG-IV is also a competitive antagonist of Group I (IC50: mGlu1 / 5R = 389/630 μM) a
(RS)-PPG is a potent and selective group III mGluRs agonist(EC50s of 5.2 μM, 4.7 μM, 185 μM, and 0.2 μM for hmGluR4a, hmGluR6, hmGluR7b, and hmGluR8a, respectively),with neuroprotective and anticonvulsive activity.
mGlu4 receptor agonist 1 (compound 62) is a highly effective positive allosteric modulator of mGlu4 receptors, displaying an EC 50 of 308 nM. Additionally, it exhibits noteworthy anxiolytic and antipsychotic properties [1].