6-(Chloromethyl)-4-(difluoromethyl)-2,3-dihydroxypyridine
5-(Chloromethyl)-6-(difluoromethyl)-2,3-dihydroxypyridine
5-(Chloromethyl)-4-(difluoromethyl)-2,3-dihydroxypyridine
4-(Chloromethyl)-6-(difluoromethyl)-2,3-dihydroxypyridine
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