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