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