InChI=1S/C22H26O11/c1-5-22(2,9-31-21-15(25)13(23)14(24)18(33-21)19(26)27)11-8-10-6-7-12(29-3)17(30-4)16(10)32-20(11)28/h5-8,13-15,18,21,23-25H,1,9H2,2-4H3,(H,26,27)