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