Methyl 3-(bromomethyl)-4-chloro-6-(trifluoromethoxy)pyridine-2-acetate
Methyl 3-(bromomethyl)-4-chloro-5-(trifluoromethoxy)pyridine-2-acetate
Methyl 3-(bromomethyl)-4-chloro-2-(trifluoromethoxy)pyridine-5-acetate
Methyl 6-(bromomethyl)-2-chloro-4-(trifluoromethoxy)pyridine-3-acetate