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