3-(5-Thiophen-2-yl-furan-2-yl)-propionic acid

2-(1,1-Dioxo-tetrahydrothiophen-3-ylamino)-butyric acid

5-Oxo-1- m -tolyl-pyrrolidine-3-carboxylic acid

2-(2-ethyl-benzoimidazol-1-yl)-propionic acid

2-Isobutyl-quinoline-4-carboxylic acid

4-Benzothiazol-2-yl-butyric acid

3-Phenyl-2-(thiophene-2-sulfonamido)propionic acid

(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

1-(4-Ethoxy-benzoyl)-pyrrolidine-2-carboxylic acid

6,8-Dimethylthieno[2,3-b ]quinoline-2-carboxylic acid

4-[ N '-(4,6-Dimethyl-pyrimidin-2-yl)-guanidino]-benzoic acid