Ethyl 5-(fluoromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine-6-acetate
Ethyl 4-(fluoromethyl)-3-methoxy-6-(trifluoromethoxy)pyridine-2-acetate
5-Methoxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-acetic acid
Ethyl 3-(fluoromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine-6-acetate