3-(3,5-Dimethyl-1 H -pyrazol-4-yl)-propionic acid

4,4'-Dihydroxy-biphenyl-2-carboxylic acid

1-(2-Methoxy-phenyl)-5-oxo-pyrrolidine-3-carboxylic acid

(5-Oxo-2-phenyl-cyclopent-1-enyl)-acetic acid

1-(3,4-Dimethoxy-benzoyl)-piperidine-4-carboxylic acid

1-(4-Fluoro-phenyl)-5-oxo-pyrrolidine-3-carboxylic acid

1-(4-氟-苯基)-5-氧代吡咯烷三羧酸

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

1H-四唑-5-乙酸

(2-Oxo-2-piperidin-1-yl-ethylsulfanyl)-acetic acid

4,5,6,7-Tetrahydro-1 H -indazole-3-carboxylic acid

4,5,6,7-四氢-1H-吲唑-3-羧酸

4-(2-Oxo-pyrrolidin-1-yl)-butyric acid

4-(2-氧-吡咯烷-1-基)-丁酸

4-Oxo-4-(3-oxo-3,4-dihydro-2 H -quinoxalin-1-yl)-butyric acid