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