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