3-(Bromomethyl)-2-hydroxy-5-nitro-6-(trifluoromethoxy)pyridine
6-(Bromomethyl)-2-hydroxy-4-nitro-3-(trifluoromethoxy)pyridine
2-(Bromomethyl)-4-fluoro-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
2-(Bromomethyl)-3-hydroxy-5-nitro-6-(trifluoromethoxy)pyridine