Methyl 4-chloro-5-cyano-3-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 6-bromo-2-nitro-3-(trifluoromethoxy)pyridine-4-carboxylate
2-Bromo-3-(chloromethyl)-6-iodo-4-(trifluoromethoxy)pyridine
Ethyl 2-bromo-6-nitro-4-(trifluoromethoxy)pyridine-3-carboxylate