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