InChI=1S/C17H14N6O5/c1-9(24)15(22-21-10-2-5-12(6-3-10)23(27)28)16(25)18-11-4-7-13-14(8-11)20-17(26)19-13/h2-8,15H,1H3,(H,18,25)(H2,19,20,26)