InChI=1S/C27H28O18/c1-6-14(31)17(34)20(37)26(41-6)44-23-16(33)13-9(29)4-8(28)5-11(13)42-22(23)7-2-10(30)15(32)12(3-7)43-27-21(38)18(35)19(36)24(45-27)25(39)40/h2-6,14,17-21,24,26-32,34-38H,1H3,(H,39,40)