3-(2,3-Dioxo-1,2,3,4-tetrahydro-quinoxaline-6-sulfonyl)-propionic acid

3-(2-Oxo-pyrrolidin-1-yl)-propionic acid

2-Methyl-1-phenyl-1 H -benzoimidazole-5-carboxylic acid

2-甲基-1-苯基-1H-苯并咪唑-5-羧酸

3-[(4-Methoxyphenyl)sulfonamido]propionic acid

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

1-Phenyl-2,3,4,9-tetrahydro-1 H -$b-carboline-3-carboxylic acid

(1,4,5,6-Tetrahydro-pyrimidin-2-ylsulfanyl)-acetic acid

(6-Amino-benzothiazol-2-ylsulfanyl)-acetic acid

4-Methoxy-naphthalene-1-carboxylic acid

4-甲氧基-1-萘甲酸

5- p -Tolyl-1 H -pyrrole-2-carboxylic acid

[(4-Methyl-furazan-3-carbonyl)-amino]-acetic acid