InChI=1S/C22H20N6O4/c1-12-8-24-19(11-23-12)27-21(29)14-6-17-16(5-13(2)31-17)18(7-14)32-15-9-25-20(26-10-15)22(30)28(3)4/h5-11H,1-4H3,(H,24,27,29)