InChI=1S/C27H26O13/c1-27(2)15(40-27)7-11-12(28)8-14-17(21(11)35-3)22-16(25(34)38-14)10-5-4-9(6-13(10)37-22)36-26-20(31)18(29)19(30)23(39-26)24(32)33/h4-6,8,15,18-20,23,26,28-31H,7H2,1-3H3,(H,32,33)