3-Chloro-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxylic acid
4-Chloro-3-fluoro-5-hydroxy-2-(trifluoromethoxy)pyridine
4-Chloro-6-fluoro-2-hydroxy-3-(trifluoromethoxy)pyridine
2-Chloro-6-(fluoromethyl)-5-(trifluoromethoxy)pyridine-3-carboxylic acid