2-Chloro-3-fluoro-5-(trifluoromethoxy)pyridine-4-sulfonamide
2-Chloro-3-hydroxy-4-nitro-5-(trifluoromethoxy)pyridine
4-Chloro-3-fluoro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-Chloro-5-fluoro-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride