6-Bromo-2-methoxy-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-Bromo-5-methoxy-3-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-Bromo-4-fluoro-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Bromo-5-fluoro-4-(trifluoromethoxy)pyridine-3-carboxaldehyde