4-Bromo-3-(difluoromethyl)-6-hydroxy-2-methoxypyridine
4-Bromo-6-(difluoromethyl)-2-hydroxy-3-iodopyridine
4-Bromo-2-(difluoromethyl)-6-hydroxy-3-iodopyridine
4-Bromo-3-(difluoromethyl)-5-hydroxy-2-methoxypyridine
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