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