InChI=1/C20H20N4O4/c1-24-12-15(14-4-2-3-5-16(14)24)19(25)22-23-20(26)21-11-13-6-7-17-18(10-13)28-9-8-27-17/h2-7,10,12H,8-9,11H2,1H3,(H,22,25)(H2,21,23,26)/f/h21-23H BB6B8C00F69879DF