Methyl 3-hydroxy-6-nitro-2-(trifluoromethoxy)pyridine-5-acetate
Ethyl 4-iodo-2-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylate
3-(Bromomethyl)-2-iodo-4-nitro-6-(trifluoromethoxy)pyridine
Ethyl 3-iodo-5-methoxy-2-(trifluoromethoxy)pyridine-6-carboxylate