InChI=1S/C23H26O8/c1-13(24)31-23-12-30-21(14-6-8-18(26-2)20(9-14)28-4)16(23)11-29-22(23)15-5-7-17(25)19(10-15)27-3/h5-10,16,21-22,25H,11-12H2,1-4H3