(2-Methyl-5,6,7,8-tetrahydro-benzo[4,5]thieno[2,3- d ]pyrimidin-4-ylamino)-acetic acid

5-(4-Ethyl-phenyl)-7-trifluoromethyl-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid

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

7-Cyclopropyl-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid

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

3-(2-Fluoro-phenyl)-isoxazole-5-carboxylic acid

3-(4-Methoxy-phenyl)-4,5-dihydro-isoxazole-5-carboxylic acid

3-(2-Fluoro-phenyl)-4,5-dihydro-isoxazole-5-carboxylic acid

5-(4-Methoxyphenyl)-7-trifluoromethyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carboxylic acidcid

1-[(1-Ethyl-1H-pyrazol-4-yl)sulfonyl]piperidine-4-carboxylic acid

7-Chloromethyl-5-oxo-4,5-dihydro-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid