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