InChI=1S/C20H26NO11/c1-8(22)21(2)5-10-9(4-11-17(16(10)28-3)30-7-29-11)12(6-21)31-20-15(25)13(23)14(24)18(32-20)19(26)27/h4,12-15,18,20,23-25H,5-7H2,1-3H3,(H,26,27)