CECXG (3'-ethyl-LY-341,495) is a research drug which acts as a potent and selective antagonist for the group II metabotropic glutamate receptors (mGluR2/3), with reasonable selectivity for mGluR3. While it is some five times less potent than LY-341,495 at mGluR3, it has 38x higher affinity for mGluR3 over mGluR2,[1] making it one of the few ligands available that is able to distinguish between these two closely related receptor subtypes.[2][3][4]
References
^Collado I, Ezquerra J, Mazón A, Pedregal C, Yruretagoyena B, Kingston AE, et al. (October 1998). "2,3'-disubstituted-2-(2'-carboxycyclopropyl)glycines as potent and selective antagonists of metabotropic glutamate receptors". Bioorganic & Medicinal Chemistry Letters. 8 (20): 2849–2854. doi:10.1016/S0960-894X(98)00510-1. PMID9873635.
^Schoepp DD, Jane DE, Monn JA (2002). "Pharmacology of metabotropic glutamate receptors". In Egebjerg J, Krogsgaard-Larsen P, Schousboe A (eds.). Glutamate and GABA receptors and transporters: structure, function and pharmacology. Taylor & Francis. pp. 171–173. ISBN0-7484-0881-9.
^Sørensen US, Bleisch TJ, Kingston AE, Wright RA, Johnson BG, Schoepp DD, Ornstein PL (January 2003). "Synthesis and structure-activity relationship studies of novel 2-diarylethyl substituted (2-carboxycycloprop-1-yl)glycines as high-affinity group II metabotropic glutamate receptor ligands". Bioorganic & Medicinal Chemistry. 11 (2): 197–205. doi:10.1016/S0968-0896(02)00387-5. PMID12470714.