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