4-(Aminomethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-(Aminomethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxylic acid
5-(Aminomethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-(Aminomethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxaldehyde