3,6-Dihydroxy-2-(trifluoromethoxy)pyridine-5-carboxamide
3,5-Diamino-4-(trifluoromethoxy)pyridine-2-carboxamide
3,5-Diamino-2-(trifluoromethoxy)pyridine-4-carboxamide
3,4-Diamino-6-(trifluoromethoxy)pyridine-2-carboxamide
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