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