2-Bromo-6-(chloromethyl)-4-(difluoromethyl)-3-hydroxypyridine
3-Bromo-6-(bromomethyl)-2-(difluoromethyl)-4-hydroxypyridine
3-Bromo-4-(difluoromethyl)-5-fluoro-2-hydroxypyridine
6-Bromo-2-(difluoromethyl)-4-hydroxy-3-iodopyridine
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