InChI=1S/C27H28O16/c28-8-17-18(31)19(32)22(35)26(42-17)39-10-2-3-11-12(29)7-15(40-16(11)6-10)9-1-4-14(13(30)5-9)41-27-23(36)20(33)21(34)24(43-27)25(37)38/h1-7,17-24,26-28,30-36H,8H2,(H,37,38)