InChI=1/C20H16N2O4/c1-12-5-4-6-13(9-12)11-22-17(24)14-7-2-3-8-15(14)20(19(22)26)10-16(23)21-18(20)25/h2-9H,10-11H2,1H3,(H,21,23,25)/p-1/t20-/m0/s1/fC20H15N2O4/q-1 0F5C42E37E811D40