4-Fluoro-2-hydroxy-3-(trifluoromethoxy)pyridine-6-sulfonamide
2-Fluoro-5-methyl-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
6-Fluoro-4-methyl-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Fluoro-4-(difluoromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine