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