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