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