3-(3-thiophen-2-yl-1,2,4-oxadiazol-5-yl)benzoic acid

3-carbamoyl-5-(3-thiophen-2-yl-1,2,4-oxadiazol-5-yl)benzoic acid

5-hydroxy-4-oxo-2-thiophen-2-yl-1H-pyrimidine-6-carboxamide

5,6-二羟基-2-噻吩-2-基-嘧啶-4-羧酸甲酯

5,6-二羟基-2-噻吩-2-基-嘧啶-4-羧酸