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