2-(4,5-Dihydro-1 H -imidazol-2-ylamino)-propionic acid

(1 H -Tetrazol-5-yl)-acetic acid

1H-四唑-5-乙酸

2-(4,6-Dimethyl-pyrimidin-2-ylsulfanyl)-propionic acid

4,7-Dioxo-7-thiophen-2-yl-heptanoic acid

5-Isobutyl-isoxazole-3-carboxylic acid

3-[N-(Pyridin-2-yl)sulfamoyl]benzoic acid

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

(1,3-Dihydro-isoindol-2-yl)-acetic acid

5-Methyl-7-trifluoromethyl-4,5,6,7-tetrahydro-pyrazolo[1,5- a ]pyrimidine-3-carboxylic acid

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

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

1-甲基-5-氧代吡咯烷-3-羧酸