InChI=1S/C20H19NO10/c1-29-16-11-8(7-4-2-3-5-10(7)21-11)6-9(18(25)26)15(16)30-20-14(24)12(22)13(23)17(31-20)19(27)28/h2-6,12-14,17,20-24H,1H3,(H,25,26)(H,27,28)