InChI=1S/C21H24N2O11/c24-14-15(25)17(20(31)32)34-21(16(14)26)33-12(19(29)30)6-10-13-8(5-11(22-10)18(27)28)7-3-1-2-4-9(7)23-13/h1-4,10-12,14-17,21-26H,5-6H2,(H,27,28)(H,29,30)(H,31,32)