TABLE 1

Examples of mGlu5 receptor synthetic ligands

Chemical CompoundStructureTarget ReceptorReference
3,5-Dihydroxyphenylglycine (DHPG)Embedded ImagemGlu1/5 receptor agonistIto et al. (1992)
(RS)-2-Chloro-5-hydroxyphenylglycine (CHPG)Embedded ImagemGlu5 receptor agonistDoherty et al. (1997)
3-Cyano-N-(1,3-diphenyl-1H-pyrazol-5-yl)benzamide (CDPPB)Embedded ImagemGlu5 receptor PAMKinney et al. (2005)
2-Methyl-6-(phenylethynyl)-pyridine (MPEP)Embedded ImagemGlu5 receptor NAM (inverse agonist)Gasparini et al. (1999)
3-[(2-Methyl-1,3-thiazol-4-yl)ethynyl]-pyridine (MTEP)Embedded ImagemGlu5 receptor NAM (inverse agonist)Cosford et al. (2003)
2-chloro-4-((2,5-dimethyl-1-(4-(trifluoromethoxy)phenyl)-1H-imidazol-4-yl)ethynyl)pyridine (CTEP)Embedded ImagemGlu5 receptor NAM (inverse agonist)Lindemann et al., (2011)
  • NAM, negative allosteric modulator; PAM, positive allosteric modulator.