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