Methyl 3-fluoro-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-6-acetate
Methyl 5-(chloromethyl)-3-fluoro-4-(trifluoromethoxy)pyridine-2-acetate
Methyl 3-fluoro-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-acetate
Methyl 3-(chloromethyl)-5-fluoro-2-(trifluoromethoxy)pyridine-4-acetate