2-(Chloromethyl)-5-hydroxy-4-iodo-3-(trifluoromethoxy)pyridine
6-(Chloromethyl)-4-hydroxy-2-iodo-3-(trifluoromethoxy)pyridine
3-Hydroxy-2-iodo-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
2-Hydroxy-6-iodo-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine