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