InChI=1S/C17H22N8O/c1-17(2,3)16-24-14(21-5-4-9-7-20-8-22-9)11-6-10(13(19)26)12(18)23-15(11)25-16/h6-8H,4-5H2,1-3H3,(H2,19,26)(H,20,22)(H3,18,21,23,24,25)