InChI=1S/C16H16N8O/c1-3-24-13(25)7-18-15-16(24)22-12(6-17-15)10-4-5-11(21-9(10)2)14-19-8-20-23-14/h4-6,8H,3,7H2,1-2H3,(H,17,18)(H,19,20,23)