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