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