6-Chloro-4-fluoro-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
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