3-氨基-2-噻吩甲酸, 3-Aminothiophene-2-carboxylic acid

4-Phenyl-1H-pyrrole-3-carboxylic acid

4-苯基-1H-吡咯-3-羧酸

2-氨基-5-甲基噻唑-4-羧酸乙酯, 2-Amino-5-methyl-1,3-thiazole-4-carboxylic acid

(2,5-二甲基-1,3-噻唑-4-基)乙酸, (2,5-Dimethyl-1,3-thiazol-4-yl)acetic acid

5-甲基-2-苯基-1,3-恶唑-4-甲酸, 5-methyl-2-phenyl-1,3-oxazole-4-carboxylic acid

5-Chloro-1-methyl-1H-pyrazole-3-carboxylic acid

2-Chloropyrimidine-4-carboxylic acid

2-氯嘧啶-4-甲酸

3-Aminopyridazine-4-carboxylic acid

3-氨基哒嗪-4-羧酸

(5-Methoxy-2-methyl-1H-indol-3-yl)acetic acid

5-甲氧基-2-甲基-3-吲哚乙酸

4-甲基-1H-苯并咪唑-2-甲酸, 4-Methyl-1H-benzimidazole-2-carboxylic acid