2-Fluoro-3-nitro-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
5-Fluoro-2-iodo-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
2-Fluoro-6-iodo-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
2-Fluoro-3-nitro-4-(trifluoromethoxy)pyridine-5-carboxaldehyde