InChI=1/C24H18N2O3/c27-23(26-22-15-12-17-6-4-5-9-21(17)25-22)16-29-20-13-10-19(11-14-20)24(28)18-7-2-1-3-8-18/h1-15H,16H2,(H,25,26,27)/f/h26H D1247B5276F4E478