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