4-(Bromomethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylic acid
2-(Chloromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-4-methanol
4-(Bromomethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylic acid
2-(Chloromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-6-methanol