InChI=1S/C9H11N5O4/c10-13-12-5-3-8(18-6(5)4-15)14-2-1-7(16)11-9(14)17/h1-2,5-6,8,15H,3-4H2,(H,11,16,17)/t5-,6-,8-/m1/s1