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