6-Hydroxy-2-nitro-4-(trifluoromethoxy)pyridine-3-acetonitrile
Ethyl 5-(bromomethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-6-carboxylate
6-Hydroxy-3-nitro-4-(trifluoromethoxy)pyridine-2-acetonitrile
Ethyl 4-(bromomethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylate