3-(Bromomethyl)-2-cyano-4-nitro-6-(trifluoromethoxy)pyridine
6-(Bromomethyl)-3-cyano-2-nitro-4-(trifluoromethoxy)pyridine
2-(Bromomethyl)-4-cyano-6-nitro-3-(trifluoromethoxy)pyridine
Methyl 5-(chloromethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-4-acetate