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