2- m -Tolylamino-4-trifluoromethyl-thiazole-5-carboxylic acid

1,3-Dimethyl-6-(3-nitro-phenyl)-1 H -pyrazolo[3,4- b ]pyridine-4-carboxylic acid

3,6-Dimethyl-1-propyl-1 H -pyrazolo[3,4- b ]pyridine-4-carboxylic acid

3-(2-Chloro-6-fluoro-phenyl)-4,5-dihydro-isoxazole-5-carboxylic acid

1-(1-Ethyl-3,5-dimethyl-1 H -pyrazole-4-sulfonyl)-piperidine-4-carboxylic acid

5-(4- tert -Butyl-phenyl)-4-methyl-thiophene-2-carboxylic acid

4-Methoxy-3-morpholin-4-ylmethyl-benzoic acid

4-Methyl-5- p -tolyl-thiophene-2-carboxylic acid

2-(1-Ethyl-5-methyl-1 H -pyrazol-4-yl)-quinoline-4-carboxylic acid

2-(1,3-Dimethyl-1 H -pyrazol-4-yl)-quinoline-4-carboxylic acid

1-(3-Nitro-benzenesulfonyl)-piperidine-4-carboxylic acid