4-Amino-2-(chloromethyl)-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
3-Bromo-4-fluoro-6-hydroxy-2-(trifluoromethoxy)pyridine
5-Amino-3-(chloromethyl)-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Bromo-4-fluoro-2-hydroxy-6-(trifluoromethoxy)pyridine