InChI=1S/C27H28O16/c28-8-16-18(31)19(32)22(35)26(42-16)39-11-5-14-17(12(30)7-13(40-14)9-1-3-10(29)4-2-9)15(6-11)41-27-23(36)20(33)21(34)24(43-27)25(37)38/h1-7,16,18-24,26-29,31-36H,8H2,(H,37,38)