2-(Difluoromethyl)-3,5-dihydroxypyridine-4-carboxamide
2-(Difluoromethyl)-4,5-dihydroxypyridine-3-carboxamide
6-(Difluoromethyl)-3,4-dihydroxypyridine-2-carboxamide
5-(Difluoromethyl)-3,4-dihydroxypyridine-2-carboxamide
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