InChI=1S/C23H17N5O4/c1-14-4-7-16(8-5-14)20-24-22(32-26-20)17-3-2-10-27-21(17)25-28(23(27)29)12-15-6-9-18-19(11-15)31-13-30-18/h2-11H,12-13H2,1H3