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