InChI=1S/C28H32N2O3/c1-27(2,30-19-25(20-30)33-24-15-9-14-23(31)18-24)16-17-28(26(29)32,21-10-5-3-6-11-21)22-12-7-4-8-13-22/h3-15,18,25,31H,16-17,19-20H2,1-2H3,(H2,29,32)