CECXG

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]

CECXG
Identifiers
IUPAC name
  • 2-(1'SR,2'SR,3'SR)-2'-carboxy-3'-ethylcyclopropyl-2-(9-xanthylmethyl)glycine
PubChem CID
ChemSpider
Chemical and physical data
FormulaC22H23NO5
Molar mass381.428 g·mol−1
3D model (JSmol)
SMILES
  • c4cccc2c4Oc3ccccc3C2CC(N)(C(O)=O)C1C(C(=O)O)C1CC
InChI
  • InChI=1S/C22H23NO5/c1-2-12-18(20(24)25)19(12)22(23,21(26)27)11-15-13-7-3-5-9-16(13)28-17-10-6-4-8-14(15)17/h3-10,12,15,18-19H,2,11,23H2,1H3,(H,24,25)(H,26,27)/t12-,18+,19+,22+/m1/s1 N
  • Key:NBAKIHCDPVZWRB-KQLBNOIASA-N N
 NY (what is this?)  (verify)

References
  1. Collado I, Ezquerra J, Mazón A, Pedregal C, Yruretagoyena B, Kingston AE, Tomlinson R, Wright RA, Johnson BG, Schoepp DD (October 1998). "2,3'-disubstituted-2-(2'-carboxycyclopropyl)glycines as potent and selective antagonists of metabotropic glutamate receptors". Bioorganic & Medicinal Chemistry Letters. 8 (20): 2849–54. doi:10.1016/S0960-894X(98)00510-1. PMID 9873635.
  2. Jan Egebjerg, Povl Krogsgaard-Larsen, Arne Schousboe. Glutamate and gaba receptors and transporters: structure, function and pharmacology. pp 171-173. Taylor & Francis, 2002. ISBN 0-7484-0881-9
  3. Sørensen, U. (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. PMID 12470714.
  4. Ure, J.; Baudry, M.; Perassolo, M. (2006). "Metabotropic glutamate receptors and epilepsy". Journal of the Neurological Sciences. 247 (1): 1–9. doi:10.1016/j.jns.2006.03.018. PMID 16697014. S2CID 22777207.
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