InChI=1S/C17H20O8/c1-9(7-10-5-3-2-4-6-10)11(18)8-24-17-14(21)12(19)13(20)15(25-17)16(22)23/h2-7,12-15,17,19-21H,8H2,1H3,(H,22,23)