6-Chloro-4-(fluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine
2-Chloro-4-(fluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine
2-Chloro-3-(fluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine
5-Chloro-4-(chloromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine