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
Ethyl 2-(fluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-6-acetate