2-Bromo-5-(difluoromethyl)-3-hydroxypyridine-6-sulfonamide
3-Bromo-5-(bromomethyl)-4-(difluoromethyl)-2-nitropyridine
6-Bromo-4-(difluoromethyl)-2-hydroxypyridine-3-sulfonamide
3-Bromo-5-(bromomethyl)-2-(difluoromethyl)-4-nitropyridine
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