InChI=1S/C23H23NO9/c1-31-14-10-12-7-8-24-13(9-11-5-3-2-4-6-11)15(12)20(16(14)25)32-23-19(28)17(26)18(27)21(33-23)22(29)30/h2-8,10,17-19,21,23,25-28H,9H2,1H3,(H,29,30)