InChI=1S/C20H19NO10/c1-29-12-5-7(18(25)26)4-10-9-6-8(2-3-11(9)21-13(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)