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