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