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