Methyl 5-fluoro-3-nitro-4-(trifluoromethoxy)pyridine-2-acetate
Methyl 2-(aminomethyl)-5-cyano-6-(trifluoromethoxy)pyridine-3-acetate
Methyl 4-cyano-3-methoxy-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 3-fluoro-5-nitro-2-(trifluoromethoxy)pyridine-4-acetate