InChI=1S/C27H30O15/c1-37-17-4-10(2-3-13(17)30)24-18(7-12-14(31)5-11(29)6-16(12)39-24)40-27-25(22(35)21(34)19(8-28)41-27)42-26-23(36)20(33)15(32)9-38-26/h2-7,15,19-23,25-28,32-36H,8-9H2,1H3,(H2-,29,30,31)/p+1