InChI=1/C20H18N4O5/c1-20(2)28-16-5-3-12(9-18(16)29-20)21-19(25)14-11-24(23-22-14)13-4-6-15-17(10-13)27-8-7-26-15/h3-6,9-11H,7-8H2,1-2H3,(H,21,25)/f/h21H 999339904D1E8C81