(4-Allyl-5-phenyl-4 H -[1,2,4]triazol-3-ylsulfanyl)-acetic acid

2-Acetamidobenzo[d]thiazole-6-carboxylic acid

(1-Phenyl-1H -tetrazol-5-ylsulfanyl)-acetic acid

(R)-2-(4-Chloro-phenyl)-thiazolidine-4-carboxylic acid

3-(2-Ethyl-imidazol-1-yl)-propionic acid

(R)-2-Benzo[1,3]dioxol-5-yl-thiazolidine-4-carboxylic acid

2-(4-Fluoro-phenyl)-5-(1,3,5-trimethyl-1 H -pyrazol-4-yl)-pyrazolo[1,5- a ]pyrimidine-7-carboxylic acid

2-Carboxymethyl-5-nitro-2 H -pyrazole-3-carboxylic acid

3,6-Dicyclopropyl-1-phenyl-1 H -pyrazolo[3,4- b ]pyridine-4-carboxylic acid

4-Methoxy-3-(4-nitro-pyrazol-1-ylmethyl)-benzoic acid

4-Amino-2-methyl-2 H -pyrazole-3-carboxylic acid