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