Ethyl 6-hydroxy-4-methyl-3-(trifluoromethoxy)pyridine-2-carboxylate
3-Hydroxy-6-methyl-4-(trifluoromethoxy)pyridine-2-carboxylic acid
3-(Fluoromethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-5-methanol
5-Hydroxy-2-methyl-3-(trifluoromethoxy)pyridine-4-carboxylic acid