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