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