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