InChI=1S/C26H25NO12/c1-34-12-8-11-10(7-13(12)38-26-20(31)18(29)19(30)23(39-26)25(32)33)15-14-9(5-6-27-16(14)17(11)28)21(35-2)24(37-4)22(15)36-3/h5-8,18-20,23,26,29-31H,1-4H3,(H,32,33)