InChI=1S/C29H34N2O2/c1-4-11-25(12-5-1)28(26-13-6-2-7-14-26)31-21-19-30(20-22-31)18-10-17-29(32-23-24-33-29)27-15-8-3-9-16-27/h1-9,11-16,28H,10,17-24H2