InChI=1S/C21H22O11/c22-11(9-4-2-1-3-5-9)8-14(25)15-12(23)6-10(7-13(15)24)31-21-18(28)16(26)17(27)19(32-21)20(29)30/h1-7,11,16-19,21-24,26-28H,8H2,(H,29,30)