2-(Difluoromethyl)-3-hydroxy-5-iodo-4-(trifluoromethoxy)pyridine
2-(Chloromethyl)-6-hydroxy-3-iodo-5-(trifluoromethoxy)pyridine
3-(Fluoromethyl)-6-hydroxy-2-iodo-4-(trifluoromethoxy)pyridine
2-(Chloromethyl)-4-hydroxy-3-iodo-6-(trifluoromethoxy)pyridine