1-Amino-4,6-dimethyl-2-oxo-1,2-dihydro-pyridine-3-carboxylic acid

(1-Methyl-1 H -benzoimidazol-2-ylsulfanyl)-acetic acid

1-(4-Chloro-benzenesulfonyl)-pyrrolidine-2-carboxylic acid

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

1-(3-甲氧基苯基)-5-氧代吡咯烷-3-羧酸

[2-(4-甲氧基苯基)-5-氧环戊-1-烯]乙酸, [2-(4-Methoxy-phenyl)-5-oxo-cyclopent-1-enyl]-acetic acid

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

2-Benzotriazol-2-yl-propionic acid

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

3-Acetylamino-4-morpholin-4-yl-benzoic acid

9-Trifluoromethyl-5,6,7,8-tetrahydro-pyrazolo[5,1- b ]quinazoline-2-carboxylic acid

(5- p -Tolyl-tetrazol-2-yl)-acetic acid