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