InChI=1S/C25H32N4O2/c1-3-4-15-25(20-27-18-16-26(2)17-19-27)23(30)28(21-11-7-5-8-12-21)29(24(25)31)22-13-9-6-10-14-22/h5-14H,3-4,15-20H2,1-2H3