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