InChI=1S/C10H12N4O7/c15-1-2-4(16)5(17)8(21-2)14-6-3(11-9(19)12-6)7(18)13-10(14)20/h2,4-5,8,15-17H,1H2,(H2,11,12,19)(H,13,18,20)