Ethyl 6-(bromomethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 2-(bromomethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylate
2-Iodo-6-methoxy-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Ethyl 2-(aminomethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-3-acetate