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