2-Hydroxy-3-methyl-5-(trifluoromethoxy)pyridine-6-carboxylic acid
Methyl 4-hydroxy-2-methyl-3-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 3-hydroxy-5-methyl-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 3-hydroxy-4-methyl-2-(trifluoromethoxy)pyridine-5-carboxylate