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