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