Ethyl 3-(bromomethyl)-2-hydroxy-6-(trifluoromethoxy)pyridine-4-acetate
Ethyl 2-(bromomethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-5-acetate
3-(Chloromethyl)-4-hydroxy-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
2-(Chloromethyl)-4-hydroxy-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine