Ethyl 2-(fluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxylate
3-(Fluoromethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-5-acetic acid
2-(Chloromethyl)-4-hydroxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
2-(Chloromethyl)-3-hydroxy-5-(trifluoromethoxy)-6-(trifluoromethyl)pyridine