3-Fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
4-(Bromomethyl)-6-hydroxy-3-methoxy-2-(trifluoromethoxy)pyridine
5-Fluoro-3-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-(Bromomethyl)-2-hydroxy-3-methoxy-5-(trifluoromethoxy)pyridine