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