InChI=1S/C26H28O12/c1-26(2)18(38-26)10-34-12-5-3-11(4-6-12)16-9-15(28)19-14(27)7-13(8-17(19)36-16)35-25-22(31)20(29)21(30)23(37-25)24(32)33/h3-8,16,18,20-23,25,27,29-31H,9-10H2,1-2H3,(H,32,33)