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