3-Iodo-2-nitro-5-(trifluoromethoxy)pyridine-4-acetonitrile
4-(Chloromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
2-(Chloromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-5-methanol
3-(Chloromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-2-acetonitrile