InChI=1S/C21H32O9/c1-20(2)4-8-10(5-20)21(3)6-11(23)12(21)9(7-22)16(8)29-19-15(26)13(24)14(25)17(30-19)18(27)28/h8,10-11,13-17,19,22-26H,4-7H2,1-3H3,(H,27,28)/t8?,10?,11?,13?,14?,15?,16?,17?,19?,21-/m1/s1