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