InChI=1S/C27H27NO5/c1-18-6-5-7-19(14-18)12-13-33-24-15-20(10-11-23(24)32-2)25(29)28-27(26(30)31)16-21-8-3-4-9-22(21)17-27/h3-11,14-15H,12-13,16-17H2,1-2H3,(H,28,29)(H,30,31)