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