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