InChI=1S/C27H26O12/c1-27(2)5-4-11-6-12(7-15(28)23(11)39-27)14-10-36-17-9-13(8-16(35-3)18(17)19(14)29)37-26-22(32)20(30)21(31)24(38-26)25(33)34/h4-10,20-22,24,26,28,30-32H,1-3H3,(H,33,34)