3-(Difluoromethyl)-4-hydroxy-2-methylpyridine-6-carboxamide
2-(Difluoromethyl)-4-hydroxy-3-methylpyridine-6-carboxamide
2-(Difluoromethyl)-3-hydroxy-6-methylpyridine-4-carboxamide
4-(Difluoromethyl)-2-hydroxy-3-methoxypyridine-6-carboxamide
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