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