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