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