InChI=1/C13H16N4O/c1-9(18)15-6-7-16-13-5-2-10-8-11(14)3-4-12(10)17-13/h2-5,8H,6-7,14H2,1H3,(H,15,18)(H,16,17)/f/h15-16H 47DB4E8DC32E93F6