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