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