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