3-(Difluoromethyl)-2-fluoro-6-(trifluoromethoxy)pyridine-5-carboxylic acid
5-Fluoro-4-hydroxy-2-(trifluoromethoxy)pyridine-3-acetonitrile
2-Fluoro-5-hydroxy-6-(trifluoromethoxy)pyridine-3-acetonitrile
3-(Difluoromethyl)-2-fluoro-5-(trifluoromethoxy)pyridine-4-carboxylic acid