InChI=1S/C11H15N3O8/c15-2-3-1-12-11(21)14-8(3)13-9-6(18)4(16)5(17)7(22-9)10(19)20/h1,4-7,9,15-18H,2H2,(H,19,20)(H2,12,13,14,21)