InChI=1S/C21H32O9/c1-10(9-12(22)17-20(2,3)29-17)11-5-7-21(4,8-6-11)30-19-15(25)13(23)14(24)16(28-19)18(26)27/h5,7,10-11,13-17,19,23-25H,6,8-9H2,1-4H3,(H,26,27)