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