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