InChI=1S/C17H18N2O10/c18-6-8(7-3-1-2-4-9(7)20)19-10(21)5-11(22)28-17-14(25)12(23)13(24)15(29-17)16(26)27/h1-4,8,12-15,17,20,23-25H,5H2,(H,19,21)(H,26,27)