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