2-Chloro-6-nitro-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
5-(Aminomethyl)-2-bromo-3-(trifluoromethoxy)pyridine-4-acetonitrile
6-Chloro-3-nitro-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
2-Chloro-5-nitro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde