3-Bromo-5-(chloromethyl)-2-(difluoromethyl)-6-hydroxypyridine
3-Bromo-6-(chloromethyl)-2-(difluoromethyl)-5-hydroxypyridine
5-Bromo-4-(chloromethyl)-3-(difluoromethyl)-2-hydroxypyridine
5-Bromo-2-(chloromethyl)-4-(difluoromethyl)-3-hydroxypyridine
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