InChI=1S/C23H16N4O5/c28-21(29)17-6-3-7-18-19(17)27(22(30)24-18)12-13-8-10-14(11-9-13)15-4-1-2-5-16(15)20-25-23(31)32-26-20/h1-11H,12H2,(H,24,30)(H,28,29)(H,25,26,31)