5-Chloro-4-methyl-3-nitro-2-(trifluoromethoxy)pyridine
5-(Bromomethyl)-3-cyano-2-methoxy-4-(trifluoromethoxy)pyridine
2-(Bromomethyl)-6-cyano-3-(trifluoromethoxy)pyridine-4-acetonitrile
2-(Bromomethyl)-5-cyano-3-(trifluoromethoxy)pyridine-4-acetonitrile