5-(Chloromethyl)-4-fluoro-2-(trifluoromethoxy)pyridine-3-carboxylic acid
6-(Chloromethyl)-2-hydroxy-3-methoxy-4-(trifluoromethoxy)pyridine
3-(Chloromethyl)-4-fluoro-5-(trifluoromethoxy)pyridine-2-carboxylic acid
2-(Chloromethyl)-6-hydroxy-4-methoxy-3-(trifluoromethoxy)pyridine