InChI=1S/C27H27NO4/c1-2-6-20-18-24(32-23-7-4-3-5-8-23)10-12-26(20)31-14-13-22-17-21-15-19(16-27(29)30)9-11-25(21)28-22/h3-5,7-12,15,17-18,28H,2,6,13-14,16H2,1H3,(H,29,30)