3-Amino-6-fluoro-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Amino-5-(chloromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine
4-Amino-5-fluoro-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-Amino-6-fluoro-3-(trifluoromethoxy)pyridine-2-carboxaldehyde