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