2-Chloro-4-nitro-6-(trifluoromethoxy)pyridine-3-carboxaldehyde
Ethyl 4-chloro-6-fluoro-2-(trifluoromethoxy)pyridine-3-carboxylate
2-Chloro-4-nitro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
2-Chloro-3-nitro-6-(trifluoromethoxy)pyridine-4-carboxaldehyde