2-Bromo-6-(chloromethyl)-3-(trifluoromethoxy)pyridine-5-carboxylic acid
2-Bromo-5-(chloromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Bromo-4-(chloromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Bromo-3-(chloromethyl)-6-(trifluoromethoxy)pyridine-4-carboxylic acid