(2-Isobutyrylamino-acetylamino)-acetic acid

3-Benzoimidazol-1-yl-2-methyl-propionic acid

1-Methyl-5-oxo-pyrrolidine-3-carboxylic acid

1-甲基-5-氧代吡咯烷-3-羧酸

(3-Methyl-4-oxo-3,4-dihydro-phthalazin-1-yl)-acetic acid

2-(3-甲基-4-氧代-3,4-二氢酞嗪-1-基)乙酸

2-{[5-(4-Methoxyphenyl)-4-methyl-4H-1,2,4-triazol-3-yl]thio}acetic acid

2,3-Dimethyl-quinoxaline-6-carboxylic acid

2,3-二甲基喹喔啉-6-羧酸

(2,4-Dioxo-thiazolidin-3-yl)-acetic acid

(2,4-二氧噻唑烷-3-基)乙酸

2-(4-Oxo-1,4-dihydro-quinazolin-2-ylsulfanyl)-propionic acid

4-(5-Methyl-[1,2,4]triazolo[1,5- a ]pyrimidin-7-ylamino)-benzoic acid

3-(1-四唑基)苯甲酸, 3-Tetrazol-1-yl-benzoic acid

3-(2,5-Dimethyl-pyrrol-1-yl)-benzoic acid