6-Hydroxy-4-iodo-3-(trifluoromethoxy)pyridine-2-carboxylic acid
3-(Aminomethyl)-5-fluoro-4-(trifluoromethoxy)pyridine-2-acetic acid
4-Hydroxy-3-methyl-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-Hydroxy-2-methyl-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride