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