3-(Fluoromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-5-acetic acid
2-(Fluoromethyl)-5-methoxy-3-(trifluoromethoxy)pyridine-4-acetic acid
2-(Fluoromethyl)-4-methoxy-3-(trifluoromethoxy)pyridine-5-acetic acid
2-(Fluoromethyl)-3-methoxy-5-(trifluoromethoxy)pyridine-6-acetic acid