InChI=1S/C12H22N4O5/c1-6(2)3-8(12(20)21)16-11(19)7(4-9(14)17)15-10(18)5-13/h6-8H,3-5,13H2,1-2H3,(H2,14,17)(H,15,18)(H,16,19)(H,20,21)/t7-,8+/m0/s1