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