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