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