InChI=1S/C11H19N3O7/c1-5(12)9(18)13-6(2-3-15)10(19)14-7(11(20)21)4-8(16)17/h5-7,15H,2-4,12H2,1H3,(H,13,18)(H,14,19)(H,16,17)(H,20,21)/t5-,6-,7-/m0/s1