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