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