4-(Bromomethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
6-(Bromomethyl)-3-fluoro-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Hydroxy-2-methyl-5-(trifluoromethoxy)pyridine-4-sulfonamide
4-(Bromomethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxaldehyde