Ethyl 2-methoxy-5-nitro-3-(trifluoromethoxy)pyridine-6-acetate
3-(Fluoromethyl)-2-iodo-4-(trifluoromethoxy)pyridine-5-acetonitrile
3-(Bromomethyl)-6-methoxy-2-nitro-5-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-6-iodo-3-(trifluoromethoxy)pyridine-4-acetonitrile