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