2-Hydroxy-5-methyl-6-(trifluoromethoxy)pyridine-3-carbonyl chloride
5-Hydroxy-2-iodo-4-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Hydroxy-5-methyl-4-(trifluoromethoxy)pyridine-3-carbonyl chloride
4-Hydroxy-5-iodo-2-(trifluoromethoxy)pyridine-3-carboxylic acid