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