Methyl 2-(bromomethyl)-6-cyano-3-(trifluoromethoxy)pyridine-5-acetate
2-(Aminomethyl)-3-cyano-4-(trifluoromethoxy)pyridine-6-acetic acid
Methyl 6-(bromomethyl)-3-cyano-2-(trifluoromethoxy)pyridine-4-acetate
Methyl 2-(bromomethyl)-5-cyano-3-(trifluoromethoxy)pyridine-6-acetate