InChI=1S/C27H30N2O4/c30-24(28-13-15-33-16-14-28)18-29-23-17-21(27(31)32)11-12-22(23)25(19-7-3-1-4-8-19)26(29)20-9-5-2-6-10-20/h2,5-6,9-12,17,19H,1,3-4,7-8,13-16,18H2,(H,31,32)