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