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