5-Fluoro-3-hydroxy-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-(Bromomethyl)-2-fluoro-4-iodo-6-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-fluoro-4-nitro-6-(trifluoromethoxy)pyridine
3-Fluoro-5-hydroxy-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride