4-Hydroxy-5-(trifluoromethoxy)pyridine-2-carboxamide
4-Hydroxy-3-(trifluoromethoxy)pyridine-5-carboxamide
4-Hydroxy-3-(trifluoromethoxy)pyridine-2-carboxamide
4-Hydroxy-2-(trifluoromethoxy)pyridine-6-carboxamide
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