4-Cyano-2-fluoro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
Methyl 4-chloro-3-fluoro-2-(trifluoromethoxy)pyridine-5-carboxylate
3-Cyano-5-fluoro-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
Methyl 4-chloro-6-fluoro-3-(trifluoromethoxy)pyridine-2-carboxylate