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