2-Fluoro-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
2,3-Dibromo-6-(trifluoromethoxy)pyridine-5-acetonitrile
6-(Chloromethyl)-4-methyl-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-(Fluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine-3-carboxaldehyde