InChI=1S/C20H26N2O11/c1-31-19(30)11(7-9-5-3-2-4-6-9)22-17(27)10(21)8-12(23)32-20-15(26)13(24)14(25)16(33-20)18(28)29/h2-6,10-11,13-16,20,24-26H,7-8,21H2,1H3,(H,22,27)(H,28,29)