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