InChI=1S/C11H15N5O5/c1-12-11-14-8-5(9(20)15-11)13-3-16(8)10-7(19)6(18)4(2-17)21-10/h3-4,6-7,10,17-19H,2H2,1H3,(H2,12,14,15,20)