4-Cyano-5-fluoro-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
5-Chloro-4-(fluoromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine
6-Chloro-3-(chloromethyl)-4-fluoro-2-(trifluoromethoxy)pyridine
3-Chloro-4-(fluoromethyl)-2-methoxy-5-(trifluoromethoxy)pyridine