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