2-Furancarboxylic acid, 5-(aminocarbonyl)-1H-imidazol-4-yl ester 5-(Aminocarbonyl)-1H-imidazol-4-yl 2-furancarboxylate 5-Carbamoyl-1H-imidazole-4-yl furan-2'-carboxylate 78682-15-2