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