2-(Chloromethyl)-3-methyl-4-(trifluoromethoxy)pyridine-5-acetonitrile
5-(Bromomethyl)-3-methyl-2-(trifluoromethoxy)pyridine-4-acetonitrile
3-(Bromomethyl)-6-methyl-2-(trifluoromethoxy)pyridine-5-acetonitrile
5-(Bromomethyl)-2-methyl-3-(trifluoromethoxy)pyridine-4-acetonitrile