InChI=1S/C21H32O10/c1-20(2)4-8-10(12(24)7(6-22)11-9(23)5-21(8,11)3)17(20)31-19-15(27)13(25)14(26)16(30-19)18(28)29/h8-10,12-17,19,22-27H,4-6H2,1-3H3,(H,28,29)/t8?,9?,10?,12?,13?,14?,15?,16?,17?,19?,21-/m1/s1