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