InChI=1S/C20H28N2O11/c1-31-12-7-9(2-3-13(25)22-8-10(23)4-5-21)6-11(24)17(12)32-20-16(28)14(26)15(27)18(33-20)19(29)30/h2-3,6-7,10,14-16,18,20,23-24,26-28H,4-5,8,21H2,1H3,(H,22,25)(H,29,30)