5-Furan-2-yl-7-trifluoromethyl-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid

7-Difluoromethyl-5-phenyl-pyrazolo[1,5- a ]pyrimidine-3-carboxylic acid

4-(2-Chloro-phenoxymethyl)-benzoic acid

5-(4-Bromo-3-nitro-pyrazol-1-ylmethyl)-furan-2-carboxylic acid

3-(4-Ethyl-phenoxymethyl)-benzoic acid

2-(2-Nitro-phenoxy)-propionic acid

3-[3-(4-Bromo-phenoxymethyl)-4-methoxy-phenyl]-acrylic acid

(4-Nitro-pyrazol-1-yl)-acetic acid

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

3-(4-Chloro-3,5-dimethyl-pyrazol-1-yl)-butyric acid