2-Bromo-4-(difluoromethyl)-3-hydroxy-5-iodopyridine
4-Bromo-6-(difluoromethyl)-3-fluoro-2-hydroxypyridine
6-(Chloromethyl)-2-(difluoromethyl)-3,4-dihydroxypyridine
2-(Bromomethyl)-3-(difluoromethyl)-4,5-dihydroxypyridine
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