InChI=1S/C24H20N2O5/c1-31-19-6-3-2-5-14(19)15-12-18-20(22-21(15)23(29)25-24(22)30)16-11-13(28)7-8-17(16)26(18)9-4-10-27/h2-3,5-8,11-12,27-28H,4,9-10H2,1H3,(H,25,29,30)