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