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