3-Hydroxy-5-methyl-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
Methyl 4-hydroxy-2-methyl-5-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 5-hydroxy-3-methyl-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 3-hydroxy-2-methyl-5-(trifluoromethoxy)pyridine-4-carboxylate