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