InChI=1S/C12H21N3O6/c1-7(11(18)19)14-9(16)5-3-2-4-8(12(20)21)15-10(17)6-13/h7-8H,2-6,13H2,1H3,(H,14,16)(H,15,17)(H,18,19)(H,20,21)/t7-,8+/m1/s1