2-(Aminomethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-4-acetic acid
6-(Aminomethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-3-acetic acid
5-(Chloromethyl)-2-iodo-3-nitro-6-(trifluoromethoxy)pyridine
2-(Aminomethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-4-acetic acid