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