4-Chloro-2-methoxy-6-(trifluoromethoxy)pyridine-3-acetonitrile
4-Chloro-2-methoxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-Chloro-5-methoxy-6-(trifluoromethoxy)pyridine-2-acetonitrile
3-Chloro-5-methoxy-2-(trifluoromethoxy)pyridine-6-acetonitrile