InChI=1/C21H16N4O2/c26-18(10-13-4-2-1-3-5-13)23-15-6-7-16-14(11-15)12-17-19(16)24-21(27)20-22-8-9-25(17)20/h1-9,11H,10,12H2,(H,23,26)(H,24,27)/f/h23-24H 7795D630E7308391