InChI=1S/C17H22O8/c1-9(11(7-18)10-5-3-2-4-6-10)8-24-17-14(21)12(19)13(20)15(25-17)16(22)23/h2-7,9,11-15,17,19-21H,8H2,1H3,(H,22,23)