6-Fluoro-3-nitro-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
4-Fluoro-2-nitro-6-(trifluoromethoxy)pyridine-3-sulfonamide
4-Fluoro-2-nitro-3-(trifluoromethoxy)pyridine-6-sulfonamide
2-Fluoro-5-nitro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride