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