InChI=1S/C26H30N4O2/c31-24-12-10-21-11-13-25(28-26(21)27-24)32-19-4-3-14-29-15-17-30(18-16-29)23-9-5-7-20-6-1-2-8-22(20)23/h1-2,5-9,11,13H,3-4,10,12,14-19H2,(H,27,28,31)