Methyl 6-methoxy-4-nitro-2-(trifluoromethoxy)pyridine-3-acetate
2-(Bromomethyl)-3-methoxy-4-nitro-5-(trifluoromethoxy)pyridine
4-(Chloromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-(Chloromethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-6-acetonitrile