InChI=1/C21H16N2O4/c1-26-15-10-9-14(18(11-15)27-2)12-22-23-20(24)16-7-3-5-13-6-4-8-17(19(13)16)21(23)25/h3-12H,1-2H3/b22-12+	693C5D2BDDF69204