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