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