Ethyl 6-cyano-3-methyl-2-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 4-(chloromethyl)-5-cyano-2-(trifluoromethoxy)pyridine-3-carboxylate
4-(Bromomethyl)-2-cyano-3-methyl-6-(trifluoromethoxy)pyridine
Ethyl 2-cyano-5-methyl-3-(trifluoromethoxy)pyridine-6-carboxylate