InChI=1S/C12H26N8O3/c13-7(3-1-5-18-11(14)15)9(21)20-8(10(22)23)4-2-6-19-12(16)17/h7-8H,1-6,13H2,(H,20,21)(H,22,23)(H4,14,15,18)(H4,16,17,19)/t7-,8-/m0/s1