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