3-Bromo-2-methoxy-5-(trifluoromethoxy)pyridine-4-carboxaldehyde
5-Bromo-3-(chloromethyl)-4-methyl-2-(trifluoromethoxy)pyridine
2-Bromo-5-methoxy-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
3-Bromo-5-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxaldehyde