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