Ethyl 3-(bromomethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 2-(bromomethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-5-acetate
2-(Bromomethyl)-3-iodo-4-methyl-6-(trifluoromethoxy)pyridine
Methyl 2-(bromomethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-4-acetate