Methyl 4-amino-5-(chloromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
6-Amino-4-iodo-2-(trifluoromethoxy)pyridine-3-acetic acid
Methyl 4-amino-3-(chloromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylate
2-Amino-4-iodo-5-(trifluoromethoxy)pyridine-3-acetic acid