InChI=1S/C26H28N4O2/c1-26(24-11-6-14-29(24)22-9-4-2-7-19(22)17-32-26)18-28-15-12-20(13-16-28)30-23-10-5-3-8-21(23)27-25(30)31/h2-11,14,20H,12-13,15-18H2,1H3,(H,27,31)