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