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