3-Chloro-5-(3-methoxy-phenyl)-7-trifluoromethyl-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid

(2-Methyl-imidazol-1-yl)-acetic acid

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

5-(3,4-Dimethoxy-phenyl)-2 H -pyrazole-3-carboxylic acid

2-(4,5-Dihydro-1 H -imidazol-2-ylamino)-propionic acid

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

7-Chloro-4-methyl-2-oxo-3,4-dihydro-2 H -pyrido[1,2- a ]pyrimidine-4-carboxylic acid

2-Morpholin-4-yl-propionic acid

1-(4-Methyl-benzoyl)-piperidine-4-carboxylic acid

1-(3,4-Dimethoxy-benzoyl)-piperidine-4-carboxylic acid

3-(4-Fluoro-phenyl)-2-phenyl-propionic acid