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