InChI=1S/C27H28O18/c28-5-14-17(34)18(35)20(37)24(43-14)16-10(32)2-9(31)15-11(33)4-12(42-23(15)16)6-1-7(29)8(30)3-13(6)44-27-22(39)19(36)21(38)25(45-27)26(40)41/h1-4,14,17-22,24-25,27-32,34-39H,5H2,(H,40,41)