3-Chloro-2-hydroxy-6-(trifluoromethoxy)pyridine-4-carboxylic acid
4-Chloro-2-(chloromethyl)-5-(trifluoromethoxy)pyridine-3-acetonitrile
3-Chloro-2-hydroxy-4-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Chloro-6-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxylic acid