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