2-Chloro-3-(chloromethyl)-6-cyano-4-(trifluoromethoxy)pyridine
4-Chloro-3-(fluoromethyl)-2-methoxy-5-(trifluoromethoxy)pyridine
4-Bromo-6-nitro-2-(trifluoromethoxy)pyridine-3-acetonitrile
4-Chloro-6-(fluoromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine