| DCC | N,N′-dicyclohexylcarbodiimide |
| DCU | dicyclohexylurea |
| DMAP | 4-dimethylaminopyridine |
| HPLC | high performance liquid chromatography |
| L-AP4 | L-(+)-2-amino-4-phosphonobutyric acid |
| MgBr2-etherate | magnesium bromide ethyl etherate |
| mGluR | glutamate metabotropic receptors |
| mGlu1aR | metabotropic glutamate 1a receptor |
| mGlu8aR | metabotropic glutamate 8a receptor |
| MAP4 | (S)-2-Amino-2-methyl-4-phosphonobutyric acid |
| NMDA | N-methyl-D-aspartic acid |
| rt | room temperature |