4-(Bromomethyl)-2-hydroxy-5-iodo-3-(trifluoromethoxy)pyridine
3-(Bromomethyl)-5-hydroxy-2-iodo-6-(trifluoromethoxy)pyridine
5-Fluoro-3-(fluoromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine
2-(Bromomethyl)-6-hydroxy-3-iodo-5-(trifluoromethoxy)pyridine