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