InChI=1S/C28H38N4O/c29-27(33)28(31-18-6-1-7-19-31)15-21-30(22-16-28)17-8-20-32-25-11-4-2-9-23(25)13-14-24-10-3-5-12-26(24)32/h2-5,9-12H,1,6-8,13-22H2,(H2,29,33)