InChI=1S/C26H26O9/c1-21(2)20(29)24(30)10-12-6-5-8-22(3)14(12)15(18(27)33-16(22)13-7-9-32-11-13)25(24,31)23(4)26(21)17(34-26)19(28)35-23/h6-7,9,11,16-17,30-31H,5,8,10H2,1-4H3