InChI=1S/C21H28O11/c1-11(2)7-13(22)8-21(29,5-3-14(23)12-4-6-30-9-12)10-31-20-17(26)15(24)16(25)18(32-20)19(27)28/h4,6-7,9,15-18,20,24-26,29H,3,5,8,10H2,1-2H3,(H,27,28)