2-OXO-4-CYCLOPENTYLETHYL-IMIDAZOLE-5-CARBOXYLIC ACID

1,3-DIHYDRO-IMIDAZOL-2-ONE-5-CYCLOPENTYLETHYL-4-CARBOXYLIC ACID

1H-IMIDAZOLE-4-CARBOXYLIC ACID,5-(2-CYCLOPENTYLETHYL)-2,3-DIHYDRO-2-OXO-