6-Bromo-2-fluoro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Bromo-6-fluoro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
6-Bromo-4-fluoro-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
4-Bromo-3-fluoro-6-(trifluoromethoxy)pyridine-2-sulfonamide