4-(Chloromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylic acid
2-(Bromomethyl)-3-hydroxy-5-methyl-4-(trifluoromethoxy)pyridine
2-Iodo-6-methoxy-5-(trifluoromethoxy)pyridine-3-carbonyl chloride
5-(Chloromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylic acid