(5-Oxo-2- p -tolyl-cyclopent-1-enyl)-acetic acid

2-Trifluoromethyl-1H-benzoimidazole-5-carboxylic acid

5-Phenyl-1 H -pyrrole-2-carboxylic acid

1,6-Dimethyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid

1,6-二甲基-4-氧代-1,4-二氢-喹啉-3-羧酸

3-(1 H -Benzoimidazol-2-yl)-3-hydroxy-propionic acid

1 H -Imidazole-4,5-dicarboxylic acid 4-ethyl ester

2-(Benzothiazol-2-ylsulfanyl)-propionic acid

2-(4-Amino-benzenesulfonylamino)-propionic acid

4-[(Furan-2-ylmethyl)-sulfamoyl]-benzoic acid

5-Hydroxymethyl-furan-2-carboxylic acid

5-羟甲基-2-呋喃甲酸

1-Benzenesulfonyl-pyrrolidine-2-carboxylic acid