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