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