3-(Difluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine-6-acetic acid
4-Fluoro-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-carboxylic acid
2-Chloro-3-(difluoromethyl)-4-nitropyridine-5-acetonitrile
4-(2,3-Difluorophenyl)-2-iodo-6-(trifluoromethyl)pyridine