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