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