Methyl 2-chloro-5-cyano-3-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 2-chloro-4-cyano-6-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 2-chloro-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-chloro-3-cyano-6-(trifluoromethoxy)pyridine-4-carboxylate