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