InChI=1S/C12H20N4O5/c1-6(2)10(12(20)21)16-11(19)7(13)5-15-9(18)4-3-8(14)17/h3-4,6-7,10H,5,13H2,1-2H3,(H2,14,17)(H,15,18)(H,16,19)(H,20,21)/b4-3+/t7-,10-/m0/s1