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