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