InChI=1S/C28H32O9/c1-24(2)8-7-21(29)26(4)27(24,32)10-9-25(3)28(26,33)14-16-18(37-25)13-17(36-23(16)31)15-11-19(34-5)22(30)20(12-15)35-6/h7-8,11-13,30,32-33H,9-10,14H2,1-6H3