Ethyl 6-(chloromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 2-(chloromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-3-acetate
3-Fluoro-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetic acid
Ethyl 2-(chloromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-4-acetate