InChI=1S/C22H24O8/c1-28-16-12-15(11-10-14(16)9-5-8-13-6-3-2-4-7-13)29-22-19(25)17(23)18(24)20(30-22)21(26)27/h2-8,10-12,17-20,22-25H,9H2,1H3,(H,26,27)