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