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