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