InChI=1S/C27H34O16/c28-7-17-19(33)21(35)23(37)26(42-17)40-14-2-1-9(25-13(32)6-11-12(31)4-10(30)5-15(11)39-25)3-16(14)41-27-24(38)22(36)20(34)18(8-29)43-27/h1-5,13,17-38H,6-8H2