Ethyl 2-hydroxy-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-acetate
2-(Fluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-4-acetic acid
Ethyl 5-hydroxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetate
2-(Fluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-5-acetic acid