InChI=1S/C27H29NO4/c1-2-32-26(30)20-25(29)21-31-19-18-28-27(22-12-6-3-7-13-22,23-14-8-4-9-15-23)24-16-10-5-11-17-24/h3-17,28H,2,18-21H2,1H3