7-dihydro-5H-pyrrolo[1,2-a]imidazole: EC50 = 1nM, Emax = 65%; good selectivity over α1B, α1D and α2A subtypes further partial agonistic imidazole compounds
ML, Gouaux E. Mechanism of activation and selectivity in a ligand-gated ion channel: structural and functional studies of GluR2 and quisqualate. Biochemistry