InChI=1/C13H16N4O/c1-11-15-7-9-17(11)8-3-6-16-13(18)12-4-2-5-14-10-12/h2,4-5,7,9-10H,3,6,8H2,1H3,(H,16,18)/f/h16H EE9B6EC2E107D70C