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