2-Chloro-4-hydroxy-3-(trifluoromethoxy)pyridine-5-sulfonamide
3-Chloro-2-(chloromethyl)-4-hydroxy-6-(trifluoromethoxy)pyridine
4-Chloro-3-cyano-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine
2-Chloro-6-(chloromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine