InChI=1S/C21H30O9/c1-9(2)10-5-6-11-12(7-13(22)21(4,28)20(11,3)8-10)29-19-16(25)14(23)15(24)17(30-19)18(26)27/h6,10,12,14-17,19,23-25,28H,1,5,7-8H2,2-4H3,(H,26,27)/t10?,12?,14?,15?,16?,17?,19?,20-,21?/m0/s1