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