InChI=1S/C11H21N5O4/c12-7(2-1-3-15-11(13)14)9(18)16-5-6(17)4-8(16)10(19)20/h6-8,17H,1-5,12H2,(H,19,20)(H4,13,14,15)/t6-,7+,8+/m1/s1