InChI=1S/C21H28N2O11/c1-21(2)6-11(25)13-12(34-21)4-3-9(14(13)23-31)10(24)5-8(22)7-32-20-17(28)15(26)16(27)18(33-20)19(29)30/h3-4,8,15-18,20,23,26-28,31H,5-7,22H2,1-2H3,(H,29,30)