InChI=1S/C11H17N5O4/c12-7(1-2-9(13)17)10(18)16-8(11(19)20)3-6-4-14-5-15-6/h4-5,7-8H,1-3,12H2,(H2,13,17)(H,14,15)(H,16,18)(H,19,20)/t7-,8-/m0/s1