InChI=1S/C17H22O8/c1-9(7-10-3-5-11(23-2)6-4-10)8-24-17-14(20)12(18)13(19)15(25-17)16(21)22/h3-7,12-15,17-20H,8H2,1-2H3,(H,21,22)