4-Cyano-6-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxamide
4-Cyano-2-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxamide
5-Cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxamide
3-Cyano-2-hydroxy-6-(trifluoromethoxy)pyridine-4-carboxamide
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