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