InChI=1S/C17H28O16/c18-2-17(28)3-30-16(12(17)24)29-1-4-10(7(21)8(22)14(27)31-4)32-15-9(23)5(19)6(20)11(33-15)13(25)26/h4-12,14-16,18-24,27-28H,1-3H2,(H,25,26)