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