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