LY2812223 is a highly potent, functionally selective mGlu2 receptor agonist with mGlu2 binding affinity for mGlu2 and mGlu3 (Ki=144 nM and 156 nM, respectively)[1]. mGluR2|144 nM (Ki)|mGluR3|156 nM (Ki)
[1]. Monn JA, et al. Synthesis and Pharmacological Characterization of C4-(Thiotriazolyl)-substituted-2-aminobicyclo[3.1.0]hexane-2,6-dicarboxylates. Identification of (1R,2S,4R,5R,6R)-2-Amino-4-(1H-1,2,4-triazol-3-ylsulfanyl)bicyclo[3.1.0]hexane-2,6-dicarboxylic Acid (LY2812223), a Highly Potent, Functionally Selective mGlu2 Receptor Agonist. J Med Chem. 2015 Sep 24;58(18):7526-48.