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