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