Ethyl 4-(bromomethyl)-3-cyano-5-(trifluoromethoxy)pyridine-2-acetate
Ethyl 4-chloro-3-methyl-5-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 4-(bromomethyl)-2-cyano-5-(trifluoromethoxy)pyridine-3-acetate
Ethyl 4-chloro-2-methyl-5-(trifluoromethoxy)pyridine-3-carboxylate