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