Ethyl 4-(aminomethyl)-2-cyano-5-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-(bromomethyl)-3-cyano-5-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-(aminomethyl)-5-cyano-4-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 5-(bromomethyl)-3-cyano-2-(trifluoromethoxy)pyridine-4-acetate