InChI=1S/C27H32O18/c28-5-14-17(34)18(35)20(37)24(43-14)15-10(31)4-12-6(16(15)33)1-11(32)23(42-12)7-2-8(29)9(30)3-13(7)44-27-22(39)19(36)21(38)25(45-27)26(40)41/h2-4,11,14,17-25,27-39H,1,5H2,(H,40,41)