4-(Difluoromethyl)-2-hydroxypyridine-5-carboxamide
4-(Difluoromethyl)-2-hydroxypyridine-3-carboxamide
5-(Difluoromethyl)-3-hydroxypyridine-2-carboxamide
3-(Difluoromethyl)-5-hydroxypyridine-4-carboxamide
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