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