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