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