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