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