InChI=1S/C13H15N3O8/c17-6-9(15-13(22)12(21)14-5-10(18)19)11(20)7-1-3-8(4-2-7)16(23)24/h1-4,9,11,17,20H,5-6H2,(H,14,21)(H,15,22)(H,18,19)/t9-,11-/m1/s1