4-乙酰氨基-2-乙酰氧基苯甲酸

2-hydroxy-4-[(2,2,2-trichloroacetyl)amino]benzoic acid

4-(ethoxycarbonylamino)-2-hydroxybenzoic acid

2-(2-acetyloxy-4-methylamidophenyl)benzoxazole

trimethyl 4-methoxy-1H-pyrrolo(2,3-f)quinoline-2,7,9-tricarboxylate