3-Amino-5-(aminomethyl)-2-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Amino-5-(aminomethyl)-2-(trifluoromethoxy)pyridine-4-carboxylic acid
5-Amino-4-(aminomethyl)-2-(trifluoromethoxy)pyridine-3-carboxylic acid
5-Amino-4-(aminomethyl)-3-(trifluoromethoxy)pyridine-2-carboxylic acid