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