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