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