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