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