InChI=1S/C17H20O8/c1-17(2)7-6-8-9(4-3-5-10(8)25-17)23-16-13(20)11(18)12(19)14(24-16)15(21)22/h3-7,11-14,16,18-20H,1-2H3,(H,21,22)