3-(Aminomethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylic acid
5-(Aminomethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylic acid
4-Amino-2-chloro-3-(difluoromethyl)pyridine-6-carboxylic acid
3-(Aminomethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-2-carboxylic acid