ETHYL 2,7-DIMETHYLIMIDAZO[1,2-A]PYRIDINE-3-CARBOXYLATE ETHYL 1-METHYL-1H-IMIDAZOLE-2-CARBOXYLATE Imidazole 1H-Imidazole-4-carboxylic acid ETHYL 8-METHYL-2-PHENYLIMIDAZO[1,2-A]PYRIDINE-3-CARBOXYLATE 6-CHLORO-2-METHYL-IMIDAZO[1,2-A]PYRIDINE-3-CARBOXYLIC ACID ETHYL ESTER 2,7-DIMETHYLPYRIDO[1,6-A]-1H-IMIDAZOLE-3-CARBOXYLIC ACID, ETHYL ESTER