Ethyl 2-iodo-6-nitro-3-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 5-(chloromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 6-iodo-3-nitro-2-(trifluoromethoxy)pyridine-4-carboxylate
2-(Chloromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-3-carboxaldehyde