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