Ethyl 2-(chloromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-6-acetate
2-Hydroxy-6-methyl-4-(trifluoromethoxy)pyridine-3-carboxylic acid
4-(Bromomethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-3-methanol
2-Hydroxy-5-methyl-6-(trifluoromethoxy)pyridine-3-carboxylic acid