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