5-(Difluoromethyl)-2,4-dihydroxypyridine-3-carbonyl chloride
3-(Difluoromethyl)-2,4-dihydroxypyridine-6-carbonyl chloride
3-(Difluoromethyl)-2,4-dihydroxypyridine-5-carbonyl chloride
6-(Difluoromethyl)-2,3-dihydroxypyridine-5-carbonyl chloride
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