4-Bromo-2-(difluoromethyl)-3-hydroxypyridine-6-sulfonamide
5-Bromo-3-(difluoromethyl)-2-hydroxypyridine-4-sulfonamide
2-Bromo-3-(difluoromethyl)-6-fluoropyridine-4-carboxaldehyde
5-Bromo-3-(difluoromethyl)-4-hydroxypyridine-2-sulfonamide
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