3-Chloro-2-hydroxy-6-(trifluoromethoxy)pyridine-4-acetonitrile
3-Chloro-2-hydroxy-4-(trifluoromethoxy)pyridine-6-acetonitrile
2-Chloro-3-cyano-5-(fluoromethyl)-6-(trifluoromethoxy)pyridine
2-Chloro-6-hydroxy-5-(trifluoromethoxy)pyridine-3-acetonitrile