Ethyl 6-(bromomethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-4-acetate
2-(Fluoromethyl)-5-hydroxy-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
Ethyl 4-(chloromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-2-acetate
2-Iodo-6-methyl-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine