1-Benzyl-5-((2,2-diethoxyethyl)amino)-N-ethoxy-1H-imidazole-4-carboximidamide 119139-25-2 AIDS-138389 AIDS138389 N'-Ethoxy-1-benzyl-5-(2,2-diethoxyethylamino)imidazole-4- carboxamide119139-25-2 NSC645088