4-Chloro-2-(chloromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylic acid
4-Chloro-2-hydroxy-5-(trifluoromethoxy)pyridine-3-acetic acid
3-Chloro-5-(chloromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Chloro-4-(chloromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylic acid