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