2-Hydroxy-6-iodo-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-Hydroxy-3-iodo-5-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-Fluoro-6-(fluoromethyl)-2-methyl-5-(trifluoromethoxy)pyridine
4-Fluoro-3-(fluoromethyl)-6-methyl-2-(trifluoromethoxy)pyridine