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