InChI=1S/C17H30O10/c1-2-3-4-5-6-24-17-15(23)13(21)12(20)10(27-17)8-26-16-14(22)11(19)9(18)7-25-16/h3-4,9-23H,2,5-8H2,1H3/b4-3-