5-Amino-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetic acid
4-Amino-3-(fluoromethyl)-5-(trifluoromethoxy)pyridine-2-acetic acid
4-Amino-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetic acid
4-Amino-2-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetic acid