2-(Chloromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-4-acetonitrile
2-(Chloromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-5-acetonitrile
2-(Bromomethyl)-3-hydroxy-5-methyl-6-(trifluoromethoxy)pyridine
6-(Fluoromethyl)-4-hydroxy-3-methyl-2-(trifluoromethoxy)pyridine