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